Water Aeration Equipment

water aeration equipment β€” pre-owned

196listings

Browse 196 water aeration equipment β€” pre-owned on eBay β€” listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

Bluelab Guardian Monitor Connect pH  IN-LINE conductivity probe used
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UsedBuy It Now

Bluelab Guardian Monitor Connect pH IN-LINE conductivity probe used

All units are being sold as pictured.

$110.00
Free ShippingOakland, US
bmwlover2018TOP
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100.0%ExcellentΒ· 4.6k
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Intelligent Growing Systems iGS-061 CO2 Controller Plug N Grow Tested Working
UsedBuy It NowBest Offer

Intelligent Growing Systems iGS-061 CO2 Controller Plug N Grow Tested Working

Intelligent Growing Systems Plug β€˜N’ Grow iGS-061 CO2 Smart Controller with high-temperature shutoff. Designed for indoor grow rooms β€” controls CO2 tanks or gas burners to regulate CO2 concentration during lighting periods. Internal sensor reads 0–5000 ppm. Unit powers on and display is functional as shown in photos. Includes rotary knob for programming CO2 setpoint, temp shutoff, differential, and operating mode. Built-in sampling fan and CO2 equipment output outlet on front panel. Includes unit and attached power cord only β€” no original box or manual. Ships fast with free USPS Priority Mail from Peoria, AZ. Thank you for shopping with phxrelics!

$64.99
Free ShippingGlendale, US
phoenixrelics
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99.1%ExcellentΒ· 245
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EcoPlus Commercial Air Pump 728459 3566 GPH 120V Aluminum Silver Black
UsedBuy It NowBest Offer

EcoPlus Commercial Air Pump 728459 3566 GPH 120V Aluminum Silver Black

EcoPlus Commercial Air Pump 728459 3566 GPH 120V Aluminum Silver Black

$58.00
See listingRialto, US
is_9836
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EcoPlus Air Pump Silver Black Aluminum for Hydroponics Water Aeration
UsedBuy It NowBest Offer

EcoPlus Air Pump Silver Black Aluminum for Hydroponics Water Aeration

EcoPlus Air Pump Silver Black Aluminum for Hydroponics Water Aeration

$50.00
See listingSimsbury, US
greenmountai-78
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100.0%ExcellentΒ· 378
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ActiveAqua 6W DWC Hydroponic 4-Outlet Air Pump, 15 L/min AAPA15L Quiet/Max db=45
UsedBuy It Now

ActiveAqua 6W DWC Hydroponic 4-Outlet Air Pump, 15 L/min AAPA15L Quiet/Max db=45

Excellent cosmetic and working condition.

$15.99
+$8.99Spring Lake, US
jrwellington
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99.2%ExcellentΒ· 1.5k
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Used 92W 1110GPH Hydroponic Active Aqua Submersible In Line AAPW1000 Water Pump
UsedBuy It Now

Used 92W 1110GPH Hydroponic Active Aqua Submersible In Line AAPW1000 Water Pump

β€œYou will receive exactly what you see in the pictures. The item is sold as-is, so please review the images carefully before purchasing. Feel free to ask any questions!” Used tested and 100% works 92W 1110GPH Hydroponic Active Aqua Submersible In Line AAPW1000 Water Pump See pictures for details

$39.99
Free ShippingAurora, US
volk-7119
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100.0%ExcellentΒ· 19.3k
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Active Aqua Commercial Air Pump - 70 Liter Runs Strong {39}
-5%
UsedBuy It NowBest Offer

Active Aqua Commercial Air Pump - 70 Liter Runs Strong {39}

With a spacious 70-liter capacity, this air pump runs strong to ensure proper aeration and circulation in your water tank.

$46.50$48.95-5%

You save $2.45

Free ShippingPueblo, US
jjja8167
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99.6%ExcellentΒ· 4.2k
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BN-LINK BNQ-T7B(H) Digital Temperature Controller - 120V - Tested Works Temp
UsedBuy It NowBest Offer

BN-LINK BNQ-T7B(H) Digital Temperature Controller - 120V - Tested Works Temp

The BN-LINK BNQ-T7B(H) Digital Temperature Controller is a reliable and efficient device designed for controlling temperatures in various settings. With a sleek black design and digital features, this 120V controller unit is perfect for maintaining optimal conditions in hydroponic systems or outdoor living spaces. Made of durable plastic and with a 6-inch diameter, this controller unit is easy to use and provides accurate temperature readings for a seamless gardening experience.

$12.99
Free ShippingMartinsburg, US
fyfxjb
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100.0%ExcellentΒ· 912
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Bluelab Pro Controller Connect to PC
UsedBuy It NowBest Offer

Bluelab Pro Controller Connect to PC

Assembled but Never used! We have a total qty of 2. Only comes with what is shown in picture.

$350.00
Free ShippingSeattle, US
cafetilibo
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100.0%ExcellentΒ· 55
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Active Aqua Hydroponic Water Chiller 2.2 Amps, 1/10 HP HydroFarm AACH10 Tester
UsedBuy It NowBest Offer

Active Aqua Hydroponic Water Chiller 2.2 Amps, 1/10 HP HydroFarm AACH10 Tester

My zip code is 92307. Just a Note: new law goes into effect. Each month this year certain states are selected to begin. They will be collecting and reporting to the gov. Sorry but this is no optional and we have no say so in the matter.

$249.99
+$60.00Apple Valley, US
sanford98
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99.9%ExcellentΒ· 17.3k
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EcoPlus Air Pump 1300 GPH
-25%
UsedBuy It NowBest Offer

EcoPlus Air Pump 1300 GPH

EcoPlus 728457 Air 5 Pump 1300 GPH.

$52.50$70.00-25%

You save $17.50

Free ShippingPonder, US
lifesciencestrading
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100.0%ExcellentΒ· 2.4k
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Ecoplus Commercial 60W Air Pump
UsedBuy It Now

Ecoplus Commercial 60W Air Pump

Used

$38.88
Free ShippingFlushing, US
liukarenkayle
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100.0%ExcellentΒ· 283
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USED AIR PUMP 10 OUTLET - HYDROPONIC-AQUARIUM-POND 105W 85L/MIN 0.04Mpa
UsedBuy It Now

USED AIR PUMP 10 OUTLET - HYDROPONIC-AQUARIUM-POND 105W 85L/MIN 0.04Mpa

Output: 85L /min. Ideal for fish pond and HYDROPONIC farm. tear resistant material for cylinder and piston. Electrical magnetic air compressor in a high quality aluminum alloy case, wear and. Perfect to run several Water farms or multiple air stones at once.

$40.99
Free ShippingRiverside, US
easyforuse
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99.4%ExcellentΒ· 46.5k
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10 Packs - 5/8" 16mm GREEN Back Antelco Barbed HYDRO Shut Off Valves FAST SHIP
UsedBuy It NowBest Offer

10 Packs - 5/8" 16mm GREEN Back Antelco Barbed HYDRO Shut Off Valves FAST SHIP

Up for sale are 10 packs of - 5/8" 16mm GREEN Back Antelco Barbed Shut Off Valves. These have been fully cleaned and all work great. FAST SHIPPING! I always try to ship items out the same day. Thanks for looking!

$24.99
+$10.00Lake Oswego, US
lecoo_3321
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99.6%ExcellentΒ· 1.4k
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Myron L Company Ultrapen PT1 Pocket Tester Pen
UsedBuy It NowBest Offer

Myron L Company Ultrapen PT1 Pocket Tester Pen

Physically in very good condition Tested and working Needs a new battery

$125.00
Free ShippingLouisville, US
derbycitythrifters-1
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100.0%ExcellentΒ· 539
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Aqua Euro USA MC Series Model MC-1/4HP Max Chillern w/Hoes & Fittings
UsedBuy It NowBest Offer

Aqua Euro USA MC Series Model MC-1/4HP Max Chillern w/Hoes & Fittings

Model MC-1/4HP Max Chiller. It features a compact design and a digital LED display that shows the current temperature and allows for easy programming. They are powerful, compact, quiet and will maintain optimum water temperature for your aquarium.

$329.00
+$75.00Mount Sinai, US
louroe9977
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99.2%ExcellentΒ· 2.6k
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ACTIVE AQUA AACH25 HydroFarm 1/4HP Water Chiller for Hydroponics Aquariums
-15%
UsedBuy It NowBest Offer

ACTIVE AQUA AACH25 HydroFarm 1/4HP Water Chiller for Hydroponics Aquariums

Poly-chlorinated biphenyls (PCBs) 2. CRT glass, except for glass with lead content less than 5 parts per million, and clean of phosphor, CRT fines, coatings and frit 4. Batteries, or 5. All international orders are subject to export restrictions under U.S. law.

$321.30$378.00-15%

You save $56.70

See listingGilroy, US
prism_electronics8
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99.5%ExcellentΒ· 4.4k
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Bluelab PowerPod Hydroponic Doser - Main Powered Equipment Control
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UsedBuy It NowBest Offer

Bluelab PowerPod Hydroponic Doser - Main Powered Equipment Control

Item in used condition showing signs of use and wear including discoloration, scratches. Includes only what is shown in photos. See photos for condition details.

$52.87
See listingChatsworth, US
bpickup319TOP
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99.3%ExcellentΒ· 3.2k
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Active Aqua Aapa45l Commercial Air Pump
UsedBuy It Now

Active Aqua Aapa45l Commercial Air Pump

Not sure if it is new or used.very clean clean condition.

$29.99
See listingMc Rae, US
frmrsdhtr
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99.9%ExcellentΒ· 10.1k
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Bluelab PeriPod M4 Controller Outlets 120 ml/min Hydroponics System
UsedBuy It NowBest Offer

Bluelab PeriPod M4 Controller Outlets 120 ml/min Hydroponics System

The Bluelab PeriPod M4 Controller Outlets is a reliable hydroponics system designed with a flow rate of 120 ml/min, 4 ml/min per pump, ensuring efficient water circulation for your plants. This controller unit from Bluelab comes with a manufacturer warranty of 2 years, providing you with peace of mind and support for your hydroponic setup. The sleek design in white and clear color makes it a stylish addition to any indoor or outdoor garden, while the set includes everything you need to get started on creating a thriving hydroponic environment.

$100.00
Free ShippingSacramento, US
vangheli777
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99.3%ExcellentΒ· 428
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AAPA25L Active Aqua Air Pump 8 Outlets 12W 25 L/Min 25L Used, Tested
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UsedBuy It NowBest Offer

AAPA25L Active Aqua Air Pump 8 Outlets 12W 25 L/Min 25L Used, Tested

Enhance your aquarium/ hydroponic experience with the Active Aqua AAPA25L Air Pump, a robust and efficient oxygenation solution designed for both novice and seasoned aquarists and horticulturists. With a convenient automatic operation mode and 8 outlets, it’s easy to set up and maintain optimal oxygen levels in your tank.

$45.00
See listingJohnstown, US
viking-ventures1TOP
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99.5%ExcellentΒ· 498
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🌫 Hydrofarm Active Aqua Air Pump, 12W, 25 L/min 8 Outlet 🌫
UsedBuy It NowBest Offer

🌫 Hydrofarm Active Aqua Air Pump, 12W, 25 L/min 8 Outlet 🌫

The Hydrofarm Active Aqua Air Pump is a powerful 12W air pump designed for hydroponic systems. With a flow rate of 350 GPH and 8 outlets, this pump can aerate up to 50 gallons of reservoir volume. The silver plastic pump features a multi-level muffler and adjustable air flow, making it suitable for various hydroponic setups. Made by the reputable brand Hydrofarm in the United States, this air pump operates quietly at 45 dB and has a compact size of 9 inches in length and 6 inches in width. Ideal for keeping your hydroponic system properly oxygenated.

$40.00
See listingJanesville, US
x2gen
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99.3%ExcellentΒ· 972
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New Vivosun 950 GPH 6-Outlet Commercial Air Pump For Aquariums Ponds Hydroponics
UsedBuy It NowBest Offer

New Vivosun 950 GPH 6-Outlet Commercial Air Pump For Aquariums Ponds Hydroponics

New in box.

$24.99
See listingMilford, US
emeraldcity203
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100.0%ExcellentΒ· 762
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Kamoer ATO One 2 SE smart auto top off system silent water replenisher
UsedBuy It Now

Kamoer ATO One 2 SE smart auto top off system silent water replenisher

The Kamoer ATO One 2 SE smart auto top off system is a silent water replenisher designed for hydroponic systems. Manufactured by Kamoer Fluid Tech (Shanghai) Co., Ltd., this water replenisher is compact with dimensions of 10.24 x 9.72 x 3.9 inches and a weight of 1.68 pounds. It is equipped with K KAMOER brand technology, ensuring efficient and silent water replenishment for your hydroponic systems. Ideal for those looking to automate their watering process and maintain healthy plant growth.

$39.99
Free ShippingCalhoun, US
kylliamstore
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99.9%ExcellentΒ· 3.1k
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πŸ’§βœ… Kamoer Ato One Automatic Top Up Unit
UsedBuy It NowBest Offer

πŸ’§βœ… Kamoer Ato One Automatic Top Up Unit

$59.99
Free ShippingHomer Glen, US
blackbirddirect_com
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99.9%ExcellentΒ· 4.5k
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EcoPlus Pro 100 Linear Air Pump 2200 GPH Hydroponics hydro farm compressor USA
UsedBuy It NowBest Offer

EcoPlus Pro 100 Linear Air Pump 2200 GPH Hydroponics hydro farm compressor USA

This product requires minimal maintenance and is oilless; no need for lubrication. Can be used with EcoPlus Trumpet Style Air Manifold. We're here to help!

$136.51
See listingRockford, US
f-stop_shop
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100.0%ExcellentΒ· 1.1k
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HYDROFARM ACTIVEAQUA AAPA70L Commercial Air Pump
UsedBuy It NowBest Offer

HYDROFARM ACTIVEAQUA AAPA70L Commercial Air Pump

WAREHOUSE LOCATION. Local Pick-up is Available. Other Notes of Interest.

$24.81
See listingFremont, US
svcheck3
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99.8%ExcellentΒ· 1.1k
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AAPA25L Active Aqua Air Pump 8 Outlets 12W 25 L/Min 25L Used Tested
UsedBuy It NowBest Offer

AAPA25L Active Aqua Air Pump 8 Outlets 12W 25 L/Min 25L Used Tested

Works great

$45.00
See listingSouthgate, US
josmor-29
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100.0%ExcellentΒ· 56
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Prominent 12 Gal Pump Station Tank | Chemical Water Treatment Hydroponics
UsedBuy It NowBest Offer

Prominent 12 Gal Pump Station Tank | Chemical Water Treatment Hydroponics

The cap and the top of the tank have a few holes drilled.

$150.00
Free ShippingSan Bernardino, US
eg-mobile
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100.0%ExcellentΒ· 334
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Flora Flex 4”
UsedBuy It Now

Flora Flex 4”

Previously used but in very good condition.

$125.00
Free ShippingPorter Ranch, US
abiverd
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100.0%ExcellentΒ· 523
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Hydrofarm Active Aqua Air Pump, 12W, 25 L/min 8 Outlet -Provides Oxygenation
UsedBuy It NowBest Offer

Hydrofarm Active Aqua Air Pump, 12W, 25 L/min 8 Outlet -Provides Oxygenation

The Hydrofarm Active Aqua Air Pump is a reliable 12W air pump designed for hydroponic systems, providing oxygenation for up to 50 gallons of water volume. With 8 outlets and an adjustable airflow feature, this silver-colored pump can easily meet the needs of your indoor garden. Made of durable plastic and featuring a multi-level muffler for quiet operation, this air pump is a top choice for maintaining healthy root systems in your hydroponic setups. Made in the United States by Hydrofarm, this air pump is both efficient and effective for promoting optimal growth in your plants. This item is used please see photos for any flaws. Motor has been tested and works fine. Used in indoor hydroponics systems.

$49.99
See listingMilwaukee, US
watsonvarietyshop
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99.4%ExcellentΒ· 834
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Hydrofarm Active Aqua AAPA70L Commercial Air Pump 60W 70L/min Hydroponics Ponds
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UsedBuy It NowBest Offer

Hydrofarm Active Aqua AAPA70L Commercial Air Pump 60W 70L/min Hydroponics Ponds

Active Aqua AAPA70L Commercial Air Pump by Hydrofarm provides high-pressure oxygenation for hydroponic systems, ponds, and large aquariums. This 60W electromagnetic air compressor features a durable aluminum alloy casing designed for heat dissipation and efficient performance. It delivers a powerful 70 liters per minute output with a pressure rating of over 0.03Mpa. Ideal for running multiple air stones or large-scale aeration needs, this unit is built for continuous commercial use. Includes a standard grounded power cord.

$26.25$35.00-25%

You save $8.75

See listingWoodridge, US
sellfromstorageTOP
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99.9%ExcellentΒ· 1.5k
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Blue Diamond Commercial Air Pump. AC 80 piston compressor.
-30%
UsedBuy It Now

Blue Diamond Commercial Air Pump. AC 80 piston compressor.

AC 80 piston compressor.

$55.99$79.99-30%

You save $24.00

+$8.95West Palm Beach, US
carlostgk
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99.4%ExcellentΒ· 3.2k
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HydroFarm Active Aqua AAPA110L Commercial Air Pump ~ 112W 110LPM ~ WORKS/READ
-12%
UsedBuy It NowBest Offer

HydroFarm Active Aqua AAPA110L Commercial Air Pump ~ 112W 110LPM ~ WORKS/READ

The photos represent exactly what you will receive. If it is not pictured, it is not included in the order. The pump is in working condition.

$39.29$44.78-12%

You save $5.49

See listingSanta Ana, US
a_to_z_store
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99.7%ExcellentΒ· 9.8k
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Myron L Company Ultrapen PT1 Conductivity TDS Salinity Temperature Pen Pouch F-S
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UsedBuy It Now

Myron L Company Ultrapen PT1 Conductivity TDS Salinity Temperature Pen Pouch F-S

The Myron L Company Ultrapen PT1 is a multi-parameter meter designed for measuring conductivity, TDS, salinity, and temperature in hydroponic systems. This portable and easy-to-use pen allows users to quickly and accurately monitor the water quality in their systems, ensuring optimal conditions for healthy plant growth. With a convenient pouch for storage and transport, the Myron L Ultrapen PT1 is a valuable tool for maintaining the integrity of hydroponic setups. Free shipping. Please follow us.

$125.00
Free ShippingPlainfield, US
bdw597TOP
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99.8%ExcellentΒ· 1.7k
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Aquarium CO2 Generator Clscea
For parts or not workingBuy It Now

Aquarium CO2 Generator Clscea

Do not know if it works, some parts are new. Tank has some foamy residue inside the tank. Sold as parts. Questions welcome.

$69.99
Free ShippingEl Paso, US
tradewindsus
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99.4%ExcellentΒ· 1.0k
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Ecoplus Commercial Air Pump - aquarium/ hydroponic  Works Great  #728455
UsedBuy It Now

Ecoplus Commercial Air Pump - aquarium/ hydroponic Works Great #728455

Item used only a few times. Workes great. Just no longer need. The Ecoplus Commercial Air Pump is a highly efficient silver aluminum air pump designed for aquarium and hydroponic use. With a flow rate of 1030gph and adjustable air flow, this pump is perfect for maintaining optimal water circulation in your hydroponic system. Made by EcoPlus, a reputable brand, this pump operates at 120V with a power consumption of 48W, making it a reliable and energy-efficient option for your gardening needs.

$25.00
See listingErie, US
yellowrollercoaster
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100.0%ExcellentΒ· 226
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ActiveAqua 6W DWC Hydroponic 4-Outlet Air Pump, 15 L/min AAPA15L Quiet/Max db=45
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UsedBuy It NowBest Offer

ActiveAqua 6W DWC Hydroponic 4-Outlet Air Pump, 15 L/min AAPA15L Quiet/Max db=45

Used. Works has some scratches and scuffs and dust in hard to reach areas. The ActiveAqua 6W DWC Hydroponic 4-Outlet Air Pump is a quiet and efficient corded electric air pump designed for hydroponic & aquarium systems. With a flow capacity of 15 liters per minute and a noise level of 45 dB, this pump is perfect for keeping your aquarium or hydroponic system aerated effectively. The set includes an air pump with four outlets, made of durable rubber materials sourced from China. Its compact design, measuring 6 x 4.1 x 9.4 inches, makes it easy to operate in various home and garden settings. Upgrade your hydroponic system with this reliable and powerful air pump from ActiveAQUA. FRLSCB

$17.95
See listingSarasota, US
someofthisabitofthatTOP
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100.0%ExcellentΒ· 182
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Active Aqua AAPA3.2L Adjustable Air Pump, 2 L/min, Silver Plastic, Hydroponics
UsedBuy It NowBest Offer

Active Aqua AAPA3.2L Adjustable Air Pump, 2 L/min, Silver Plastic, Hydroponics

Active Aqua AAPA3.2L Adjustable Air Pump, 2 L/min, Silver Plastic, Hydroponics

$13.54
See listingBethel Park, US
dodgeb-1008
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98.4%ExcellentΒ· 60
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Bluelab PENCON Conductivity Pen Fully Waterproof Pocket Tester, CF, EC, PPM 500,
UsedBuy It NowBest Offer

Bluelab PENCON Conductivity Pen Fully Waterproof Pocket Tester, CF, EC, PPM 500,

The Bluelab PENCON Conductivity Pen is a fully waterproof pocket tester ideal for measuring conductivity levels in hydroponic systems. With the ability to measure CF, EC, and PPM 500, this pen is perfect for maintaining optimal water quality in your garden or patio. The sleek design in white color makes it easy to use and store, while the Bluelab brand ensures reliability and accuracy. Perfect for those looking to monitor and improve the health of their hydroponic systems.

$95.00
See listingSan Francisco, US
hanif60
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98.9%ExcellentΒ· 658
View on eBayOpen listing β†’