Pool Chemicals & Testing

pool chemicals & testing โ€” pre-owned

297listings

Browse 297 pool chemicals & testing โ€” pre-owned on eBay โ€” listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

WaterLink LaMotte Water Tester
UsedBuy It NowBest Offer

WaterLink LaMotte Water Tester

It is essential for maintaining clean and safe water conditions in swimming pools and spas, ensuring a comfortable and enjoyable experience for users.

$199.99
+$13.99Central Point, US
goducks547
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100.0%Excellentยท 914
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LaMotte Spin Touch DW Oxygen Meter Kit for Pools w/ Case & Guide
UsedBuy It NowBest Offer

LaMotte Spin Touch DW Oxygen Meter Kit for Pools w/ Case & Guide

LaMotte Spin Touch DW Oxygen Meter Kit for Pools w/ Case & Guide

$300.00
See listingDavenport, US
car-74241
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100.0%Excellentยท 2
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Exact iDip Smart Digital Meter Bluetooth Polls Hot tub
UsedBuy It NowBest Offer

Exact iDip Smart Digital Meter Bluetooth Polls Hot tub

The Exact iDip Smart Digital Meter Bluetooth is a comprehensive testing kit suitable for hot tubs and swimming pools. With the ability to measure pH levels, THM, iron, and alkalinity, this digital meter kit provides accurate results for all water types. The included test strip bottles, carrying case, and digital meter make it convenient for on-the-go testing. The Exact iDip model offers a user-friendly interface and reliable performance, making it a valuable tool for maintaining water quality in outdoor living spaces. Only pH strips have been used

$175.00
See listingCharlotte, US
ashton_kent
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100.0%Excellentยท 39
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Sutro Pool & Spa Water Smart Monitoring Device | Tests Alkalinity, pH, Chlorine
UsedBuy It NowBest Offer

Sutro Pool & Spa Water Smart Monitoring Device | Tests Alkalinity, pH, Chlorine

Sutro Water Monitoring System for Pool & Spa. The Sutro Pool Monitor is a smart device that will help you manage your pool (or spa). (1) Sutro Monitor (this floats in your pool or spa). Once you receive the device, download the Sutro App for iPhone or Android here.

$299.900
Free ShippingLincoln Park, US
the_primemall
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100.0%Excellentยท 1.5k
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Lamotte Color Q '07 Gen3 Digital Photometer Pool & Hot Tub Testing Kit RMN 26918
UsedBuy It Now

Lamotte Color Q '07 Gen3 Digital Photometer Pool & Hot Tub Testing Kit RMN 26918

This testing kit is suitable for use in both recreational and therapeutic water systems. Perfect for maintaining optimal water quality in outdoor living spaces. The Cyanuric Acid tablets expired 5/22.

$60.00
+$18.75Albuquerque, US
4hillsdeals
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100.0%Excellentยท 426
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Lamotte 3000Hr Test Strip, 0 To 1000 Ppm Range USED (33/50strips left)
UsedBuy It Now

Lamotte 3000Hr Test Strip, 0 To 1000 Ppm Range USED (33/50strips left)

Model: 3000HR. MPN: 3000HR. Item also has label residue. Attributes: MPN: 3000HR. Features: Test Strip, Test Form Strip, Overall Length 3 in, Test Type Test. Type: Strip Kit. Depth: 1.900. Length: 3.400.

$0.99
See listingMiami, US
tedsgeneral
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99.9%Excellentยท 1.5k
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USED eSeasongear SALT-3050 Salt Meter Tester - for Pool & Pond
UsedBuy It Now

USED eSeasongear SALT-3050 Salt Meter Tester - for Pool & Pond

One Year eSeasongear Warranty. Works ONLY for Salt Water Pool and Koi Fish Pond Salt level testing! - Salt Range: 0-9999 ppm or 0.0- 1.0% salt (percent).

$19.96
See listingAtlanta, US
eseasongear
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99.8%Excellentยท 53.8k
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Sutro Smart SSM-1 Monitoring System 2 Batteries No Test Cartridge
UsedBuy It Now

Sutro Smart SSM-1 Monitoring System 2 Batteries No Test Cartridge

As pictured no returns no test cartridge comes with charger & 2 battery only no returns has some scratches as pictured no returns

$65.00
Free ShippingHemet, US
511caroline
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99.4%Excellentยท 2.3k
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ColorQ Pool 7 Plus 2056 Pool/Spa Kit LaMotte
UsedBuy It Now

ColorQ Pool 7 Plus 2056 Pool/Spa Kit LaMotte

LaMotte ColorQ Pool 7 Plus in red zippered case.

$95.00
+$13.50Riverside, US
cellardwellerg
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100.0%Excellentยท 2.8k
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WaterLink Spin Touch Water Tester G931
TOP
UsedBuy It Now

WaterLink Spin Touch Water Tester G931

$600.00
Free ShippingUS
thriftza_llcTOP
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99.1%Excellentยท 8.9k
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Turtle floating pool chlorine dispenser
-30%
UsedBuy It Now

Turtle floating pool chlorine dispenser

$12.59$17.99-30%

You save $5.40

See listingFrankfort, US
prairiehpeddler
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99.5%Excellentยท 2.6k
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Jandy Refurbished  PureLink 1400 Cell Kit 16' up to 40000 gal
-50%
UsedBuy It Now

Jandy Refurbished PureLink 1400 Cell Kit 16' up to 40000 gal

We use the latest technology to assist you with your pool, spa, patio, and backyard needs. This fee can range from 20%-50%. See below for more details It is your responsibility to make sure your order is in good condition upon receipt.

$809.74$1619.47-50%

You save $809.73

Free ShippingUS
backyardpoolsuperstore
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99.3%Excellentยท 199.4k
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Bonbo 76078 Scepter Salt Cell Replacement Rod Compatible w/Hot Spring ACE System
TOP
UsedBuy It Now

Bonbo 76078 Scepter Salt Cell Replacement Rod Compatible w/Hot Spring ACE System

SOLD AS IS.

$80.00
+$6.50Las Vegas, US
jjlvpicker21TOP
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99.9%Excellentยท 2.5k
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LaMotte 1200 Colorimeter Kit With Hard Shell Case
UsedBuy It NowBest Offer

LaMotte 1200 Colorimeter Kit With Hard Shell Case

The LaMotte 1200 Colorimeter Kit is a high-quality testing kit designed for measuring the pH and chlorine levels in water. This kit comes with a hard shell case for easy transport and storage, making it convenient to use at home or on-the-go. The LaMotte brand is known for producing reliable and accurate water testing products, making this kit a practical choice for water testing.

$150.00
+$30.00PR
pr.ja78
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100.0%Excellentยท 24
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In-Situ TROLL Water Quality Equipment MP TROLL 9500 MP 9000 Rugged Reader
-7%
For parts or not workingBuy It Now

In-Situ TROLL Water Quality Equipment MP TROLL 9500 MP 9000 Rugged Reader

RS232 TROLL Com Cable Connector (P/N 0056140, Rugged 30 ft / 9.1 m, attached to TROLL off connector). In-Situ MP TROLL 9500. The TROLL units are untested. (view pictures for more info). In-Situ TROLL 9000.

$581.24$624.99-7%

You save $43.75

Free ShippingValencia, US
falconsnest
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99.8%Excellentยท 1.0k
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ColorQ Pool 7 Plus 2056 Pool/Spa Kit LaMotte *read Description* (C301)
TOP
UsedBuy It Now

ColorQ Pool 7 Plus 2056 Pool/Spa Kit LaMotte *read Description* (C301)

This is a La Motte ColorQ pro7 model test kit, with carry case Test kit is in great condition. It is a gen 3 model. Unfortunately the chlorine tabs expired some time ago, so this is being sold WITHOUT chlorine tabs. Although I will include the expired ones, perhaps they could be used still. Those are for free! Comes with a case and all of the accesories. The actual test unit works as intended

$75.00
+$9.00Yonkers, US
golfworx1TOP
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99.8%Excellentยท 7.3k
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Spa Frog Floating Mineral System CARTRIDGE HOLDER green holds 2 King Technology
UsedBuy It Now

Spa Frog Floating Mineral System CARTRIDGE HOLDER green holds 2 King Technology

$29.00
See listingPensacola, US
summer_nova
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99.9%Excellentยท 3.3k
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Pentair All-in-One 78HR Swimming Pool Water Testing Maintenance Kit
UsedBuy It Now

Pentair All-in-One 78HR Swimming Pool Water Testing Maintenance Kit

Used a couple times Pentair All-in-One 78HR Swimming Pool Water Testing Maintenance Kit

$39.99
+$10.00Aubrey, US
sellers_touch
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100.0%Excellentยท 3.0k
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Professional Sutro Pool Hot Tub Spa Smart WiFi Pool Monitor Test + Battery
UsedBuy It Now

Professional Sutro Pool Hot Tub Spa Smart WiFi Pool Monitor Test + Battery

$75.00
See listingQueen Creek, US
nerdsofafeather
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99.7%Excellentยท 2.0k
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Wireless WiFi Bridge for pHin Smart Water Care Monitor (CY WB1500-A)
-20%
UsedBuy It Now

Wireless WiFi Bridge for pHin Smart Water Care Monitor (CY WB1500-A)

YOU WILL RECEIVE THE EXACT ITEM AS PICTURED

$12.00$15.00-20%

You save $3.00

Free ShippingBella Vista, US
bvbulbs
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99.7%Excellentยท 6.9k
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Extech Oyster-10 PH/MV/ Temperature Electronic Meter | NIB TESTED AND WORKING
UsedBuy It Now

Extech Oyster-10 PH/MV/ Temperature Electronic Meter | NIB TESTED AND WORKING

The Extech Oyster-10 PH/MV/ Temperature Electronic Meter is a reliable and accurate tool for testing the pH, MV, and temperature of pool water. This electronic meter comes in a new in box condition and includes full instructions for use. The meter is easy to operate and provides consistent readings to help maintain the proper chemical balance in your pool. Additionally, the meter comes with a protective case to keep it safe when not in use. Overall, the Extech Oyster-10 is a practical and essential tool for pool owners looking to ensure their water is clean and safe for swimmers.

$34.99
See listingHuffman, US
capt_grey
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100.0%Excellentยท 438
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Lamotte Color Q 2x Pro 7 Waterproof Blutooth Digital Pool Water Test Kit 2086
UsedBuy It Now

Lamotte Color Q 2x Pro 7 Waterproof Blutooth Digital Pool Water Test Kit 2086

Functionality condition: This device is used and fully functional. It has been tested to confirm everything is working as it should. Type Waterproof Blutooth Digital Pool Water Test Kit. Model Pro 7.

$119.99
Free ShippingMelbourne, US
paymore_melbourne
Feedback
99.1%Excellentยท 2.4k
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PoolLab 1.0 Swimming Pool Photometer Maintenance Water Tester with Bluetooth
UsedBuy It Now

PoolLab 1.0 Swimming Pool Photometer Maintenance Water Tester with Bluetooth

PoolLab 1.0 Swimming Pool Photometer Maintenance Water Tester with Bluetooth. This comes with a box and the pack of testers also with the machine. Only a few of them used. Machine works as it should. Please see pictures Please note I expect payment within 3 days of auction end. Ask questions as all sales final. Buyer to pay shipping unless marked otherwise. Please ask questions as all sales are final. Thanks for looking and happy buying

$200.00
Free ShippingReddick, US
daniewalter9
Feedback
99.4%Excellentยท 657
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Lamotte ColorQ Pro 7 Pool / Spa Testing Kit w/ Case, Manual & 6 x 30 Tablets
TOP
UsedBuy It Now

Lamotte ColorQ Pro 7 Pool / Spa Testing Kit w/ Case, Manual & 6 x 30 Tablets

$119.00
Free ShippingBluffton, US
lowcountrypickerTOP
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99.6%Excellentยท 1.3k
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PE-HD COMPLETE ENGINE CYLINDER COMRESSION TESTER KIT
TOP
UsedBuy It Now

PE-HD COMPLETE ENGINE CYLINDER COMRESSION TESTER KIT

NEW NO BOX EXCELLANT CONDITION ENGINE CYLINDER COMPRESSION TESTER COMPLETE KIT.

$26.95
+$6.86Denver, US
fair-80s-retiredTOP
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99.3%Excellentยท 1.2k
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LaMotte Waterproof Bluetooth ColorQ 2X PRO 7 2086
UsedBuy It NowBest Offer

LaMotte Waterproof Bluetooth ColorQ 2X PRO 7 2086

Digital pool chemical testing kit. Uses Bluetooth to connect to phone for results. Tests for chlorine, free chlorine, pH, alkaline, CA hardness, and CYA. Purchased new in February 2024 for $235. Very Good Condition. Comes with instructions, vials, test liquids, and cleaning brush. Available due to pool removal.

$120.00
See listingDurham, US
gjjdc-40
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100.0%Excellentยท 2
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ORP Redox Meter Tester by Gain Express 1999~1999mV Oxidation Reduction Potential
UsedBuy It NowBest Offer

ORP Redox Meter Tester by Gain Express 1999~1999mV Oxidation Reduction Potential

Carry-everywhere design.

$23.95
See listingMount Kisco, US
matthewscloset
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99.8%Excellentยท 571
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Taylor Replacement Reagent Refill Kit
UsedBuy It Now

Taylor Replacement Reagent Refill Kit

This set includes R-0870 10g - Powder is half full. R-0600 0.75oz - Mostly full but best to use by 5/2026. R-0014 0.75oz - Mostly full but best to use by 5/2026. 2x R-0013 2 oz 1 bottle is almsot full the other is half full.

$24.99
Free ShippingTemple, US
tmm_supply
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100.0%Excellentยท 1.7k
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BLUEWORKS Cell Model # BLT15-3W
UsedBuy It Now

BLUEWORKS Cell Model # BLT15-3W

The BLUEWORKS Cell Model # BLT15-3W is a white granular product designed to maintain clean and sanitized water in pools. Made by BLUE WORKS, this pool chemical is one of the items needed to ensure crystal clear water in your pool. This product is essential for keeping your pool or spa water in optimal condition for a comfortable and safe swimming experience.

$359.99
+$9.99San Diego, US
buyvantage
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99.0%Excellentยท 13.0k
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LaMotte fluoride DC1500 colorimeter kit
UsedBuy It NowBest Offer

LaMotte fluoride DC1500 colorimeter kit

Used

$399.99
Free ShippingSummerville, US
ashtonr
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98.8%Excellentยท 6.9k
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Pool Water Testing Vial Kit for Chlorine, Bromine, pH with Color Chart
UsedBuy It NowBest Offer

Pool Water Testing Vial Kit for Chlorine, Bromine, pH with Color Chart

Pool Water Testing Vial Kit for Chlorine, Bromine, pH with Color Chart

$60.00
See listingLong Beach, US
venivici562
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100.0%Excellentยท 1
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Professional Sutro Pool Hot Tub Spa Smart WiFi Pool Monitor Test + Battery
UsedBuy It Now

Professional Sutro Pool Hot Tub Spa Smart WiFi Pool Monitor Test + Battery

Professional Sutro Pool Hot Tub Spa Smart WiFi Pool Monitor Test + Battery. Condition is Used. Shipped with USPS Ground Advantage.

$70.00
See listingTerre Haute, US
mwa_9761
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99.6%Excellentยท 1.4k
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Baldr Temperature Bobber for Swimming Pool, Spa
For parts or not workingBuy It NowBest Offer

Baldr Temperature Bobber for Swimming Pool, Spa

Baldr Temperature Bobber only.

$3.99
See listingBronx, US
usgreatdeal
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99.1%Excellentยท 1.3k
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(AS-IS) Chemtrol 250 ORP/pH Digital Controller CH250 Santa Barbara Control Sys.
For parts or not workingBuy It NowBest Offer

(AS-IS) Chemtrol 250 ORP/pH Digital Controller CH250 Santa Barbara Control Sys.

Intended for repair or parting out purposes, untested and not sold as a functioning unit as-is. It powers on and the lights / buttons appear to work. There is one light bar in the display that is out (see picture, on the ORP display lower right).

$299.00
+$9.99Davenport, US
topqualityclothes
Feedback
99.9%Excellentยท 7.7k
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Extech FL700 Waterproof Fluoride Meter 0.1 to 9.99PPM or MG/L W/Manual-Good Cond
UsedBuy It Now

Extech FL700 Waterproof Fluoride Meter 0.1 to 9.99PPM or MG/L W/Manual-Good Cond

Extech FL700 with manual only, nothing else included.

$169.99
+$9.99Mount Juliet, US
wasfy25
Feedback
99.7%Excellentยท 3.2k
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WaterLink LaMotte Water Tester
UsedBuy It Now

WaterLink LaMotte Water Tester

The WaterLink LaMotte Water Tester is a testing kit specifically designed for measuring pool water quality. Made by the reputable brand LaMotte in the United States, this product provides accurate and reliable results for maintaining clean and safe swimming conditions. Perfect for home pool owners looking to ensure their water is properly balanced and free from harmful contaminants.

$100.00
See listingManitowoc, US
fattydrop1966
Feedback
100.0%Excellentยท 1.7k
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Pawfly TS-1000 7-in-1 Digital Pool Water Photometer Analyzer Kit Tested Working
UsedBuy It NowBest Offer

Pawfly TS-1000 7-in-1 Digital Pool Water Photometer Analyzer Kit Tested Working

$23.44
See listingCA
sampsonsales
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99.8%Excellentยท 799
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AquaChek 561682 Monopersulfate Test Strips for Pool Spa, 50 Strips
UsedBuy It Now

AquaChek 561682 Monopersulfate Test Strips for Pool Spa, 50 Strips

AquaChek 561682 Monopersulfate Test Strips for Pool Spa, 50 Strips. Condition is Used. Shipped with USPS Ground Advantage.

$10.89
Free ShippingSebastopol, US
springpetrichor
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99.9%Excellentยท 11.1k
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LaMotte DC1200 Colorimeter Kit With Hard Shell Case
-22%
UsedBuy It NowBest Offer

LaMotte DC1200 Colorimeter Kit With Hard Shell Case

LaMotte DC1200 Colorimeter Kit With Hard Shell Case. Condition is Used. Shipped with USPS Ground Advantage.

$101.12$129.64-22%

You save $28.52

Free ShippingChester, US
gilbertdistribution
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100.0%Excellentยท 2.8k
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Sensafe Digital Water Testing 486202-K Spa Test Kit. Please Read*.
UsedBuy It NowBest Offer

Sensafe Digital Water Testing 486202-K Spa Test Kit. Please Read*.

PreOwned Free Shipping PLEASE NOTE: The item you see is the EXACT item you are receiving. The pictures show the best description of the condition of the item. Thank you for Looking, We leave a positive review Automatically after you make the Payment.

$149.99
Free ShippingHouston, US
romart_6796
Feedback
97.4%Goodยท 283
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