Water Tests & Treatment
water tests & treatment — pre-owned
Browse 227 water tests & treatment — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
Hanna Total Chlorine ULR HI711 Great Condition
The Hanna Total Chlorine ULR HI711is a test kit specifically designed for marine aquariums.
EXact IDip 570 Smart Digital Water Tester
The EXact IDip 570 Smart Digital Water Tester is a high-quality product manufactured by Industrial Test Systems Inc. This smart digital water tester is designed for precise and accurate measurements of water quality in fish tanks and aquariums. Its advanced technology ensures reliable results, making it an essential tool for maintaining optimal water conditions for your aquatic pets. With the EXact IDip 570, you can easily monitor and adjust the water parameters to create a healthy and thriving environment for your fish.
Aquamaxx Dosing Reservoir
Aquamaxx Dosing reservoir 5L
Hanna Instruments HI96771 Chlorine Water Quality Tester / Photometer Kit w/ Case
The Hanna Instruments HI96771 Chlorine Water Quality Tester / Photometer Kit is a reliable and accurate tool for measuring chlorine levels in water. This test kit from the trusted brand Hanna allows for easy and precise testing of chlorine concentrations, making it ideal for fish and aquarium owners looking to maintain healthy water conditions for their pets. The kit includes a case for convenient storage and portability, making it a convenient and essential addition to any water quality testing setup.
YINMIK Aquarium pH Salinity Monitor WiFi 5-in-1 Salt TDS Temp Humidity Tester
The remote probe and three-display monitor provide continuous readings while smart connectivity allows aquarium conditions to be monitored through the Tuya app. Monitoring Functions: pH / Salinity / TDS / Temperature / Humidity.
Pawfly 6 in 1 Digital Aquarium Water Testing Kit TS-1000 - Used
The digital display ensures accurate readings, and the compact design makes it easy to use in any fish tank setup. Condition is Used. Manufacturer Pawfly. Whether you’re a hobbyist or professional aquarist, this fish tank water testing kit ensures optimal water conditions for thriving aquatic life.
Hanna H1758 Handheld Colorimeter Marine Calcium Tester Good shape
Milwaukee MA887 Digital Seawater Refractometer
Hanna HI-774 Marine Nitrite ULR Checker(used) no reagents included
gently used, great condition and includes everything shown in photo
** Hanna Handheld Testers & Salinity Tester - Alkalinity Phosphate Nitrate **
Hanna Alkalinity dKH with Reagent open but never used EXP: 02/2027. We take great pride in properly representing each item that we have for sale.
You save $13.00
Hanna Instruments HI 98107 pHep pH Tester Untested parts/repair See Description
Up for sale is a Hanna Instruments HI 98107 pHep pH Tester. Item is used and in good cosmetic condition with minor wear. Item powers on but have not tested further and selling for parts or repair as is. Bottom cap is missing.
Overflow Box - Unknown manufacturor
Reeftank aquarium supplies American Marine Salinity Monitor Pinpoit Tester
The American Marine Salinity Monitor Pinpoint Tester is a test kit designed for marine water aquariums. It provides accurate measurements of salt levels to ensure proper water quality for marine life. This product is specifically made for monitoring and maintaining salinity levels in marine aquariums. Lightly used . 9 volt battery, not included
Vintage Aquarium Original Hard Shell Kordon Aquatru Aquarist Master Test Kit
Hardcase and its contents.
Alfa Lewal Uv Lemp *FAST SHIPING*
MILWAUKEE T71 Microprocessor TDS Tester with automatic temperature compensation
Untested MILWAUKEE T71 Microprocessor TDS Tester is a reliable and efficient tool for testing the water quality in fish tanks and aquariums. With its automatic temperature compensation feature, this tester ensures accurate results without the need for manual adjustments. This product, manufactured by MILWAUKEE Sharp, is designed specifically for water tests and treatment, making it a valuable addition to any pet supplies collection for aquarium enthusiasts. The model T71 is known for its durability and precision in measuring the Total Dissolved Solids (TDS) in water.
API 401M Saltwater Master Test Kit Reef Aquarium pH Ammonia Nitrite Nitrate
API 401M Saltwater Master Liquid Test Kit, Tests Saltwater and Reef Aquariums Partially Used. See attached photos. LM
Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100
Used refractometer for marine aquariums
Hanna High Range Copper Colorimeter Checker HI702
Lightly used. Expired reagent. Vials always kept with RODI water inside to negate etching or hard water stains. Will include new battery.
Salinity Refractometer Meter 0-100‰ Aquarium Seawater Salt Water Tester with ATC
Fairly new refractometer, maybe a year old. My last one probably lasted 12 years so this has a lot of life left. Got out of the hobby, no longer need it. Good working condition. Case might be a little dusty from sitting in the garage.
Hanna PH Tester
The Hanna PH Tester is a reliable test kit designed to accurately measure the pH level of water in fish tanks or aquariums. This product from the well-known brand Hanna is essential for maintaining optimal water conditions for your aquatic pets. Easy to use and providing accurate results, this pH tester helps ensure a healthy environment for your fish.
Instant Ocean fasTest MK-2000 Saltwater Aquarium Test Kit Expired Reagents
Instant Ocean fasTest MK-2000 Saltwater Aquarium Master Test Kit Used. Includes what is shown in photos only, completeness cannot be guaranteed. LG
11-in-1 Aquarium Test Strips Kit - 950 Tests, 150 Strips, Used 2 Times
The 11-in-1 Aquarium Test Strips Kit is a comprehensive testing solution for aquarium enthusiasts. With 950 tests and 150 strips included in the kit, this product provides everything you need to check various water parameters such as pH, carbonate, total alkalinity, free chlorine, and more. The kit also comes with a thermometer and an eBook for guidance and instruction. This all-in-one test kit is essential for maintaining the health and balance of your aquarium water, ensuring optimal conditions for your fish and aquatic pets.
Exact iDip Smart Digital Meter Bluetooth Marine- w calibration key
NOTE- you need to install an app on your phone to use this device. No reagents included- they were all expired. New batteries installed and turned on fine with no issues.
HANNA INSTRUMENTS LAB POCKET PH TESTER ORIGINAL BOX, INSTRUCTIONS
Batteries not included. The product is a Hanna Instruments Lab Pocket pH Tester, designed to accurately measure the pH level of water for aquarium or fish tank maintenance. It comes in its original box, including batteries and instructions for use. The product is from Mauritius and has a unit quantity of 1. Perfect for pet owners looking to ensure the health and well-being of their aquatic pets by monitoring and adjusting the water's pH levels.
Hanna High Range Copper Colorimeter - Checker (USEDHC
Hanna Checker Iron ppm Water Test Kit (What you see is what you get!)
Naturally present in water in low concentrations, iron may affect the taste of water, as well as stain both laundry and household appliances. Also an indicator of corrosion, iron is monitored in industrial plants and water cooling and heating systems.
Hanna Checker Certified Standard Kit Expired
As pictured Expired checker standard kits
Hanna Instruments HI96717 Phosphate HR Photometer
• Original box. • Automatic shut-off to preserve battery life. • Laboratory and research applications. • Industrial water analysis. • Aquaculture and fish farming systems.
Hanna Instruments HI97711 Total and Free Chlorine Tester
Hanna Instruments HI96711C Chlorine Tester
Hanna HI9829 Multiparameter pH / ISE / EC / DO / Turbidity Waterproof Meter
I believe it was never used. You can be the judge.
Hanna Dkh Tester
Used, works perfect. Comes with 1 testing vial.
Instant Ocean Hydrometer
The Instant Ocean Hydrometer is a water testing tool designed specifically for fish tanks and aquariums. Made in the United States, this hydrometer allows pet owners to easily measure the water quality in their tanks to ensure a healthy environment for their aquatic pets. With this product, users can quickly and accurately determine the salinity of their tank water, providing peace of mind and ensuring the well-being of their fish.
API Audio Vintage Power Modules
API Vintage Modules. Untested Unused I have for a couple decades. Sold Asis
Salifert Calcium & Alkalinity each Kit Used 50% Up. Expires 2027
Fish starter kit-Aquarium Air Pump Bundle – Water Conditioner & gold fish food
Convenient Tetra aquarium care bundle with essentials for maintaining a freshwater or goldfish aquarium. Tetra Aquarium Air Pump Bundle – AquaSafe Water Conditioner & Goldfish Food. 🐠 Great starter bundle for a small aquarium or goldfish setup.
SR Aquaristik Speed Test Mixer Magnetic Aquarium Test Stirrer
SR Aquaristik Speed Test Mixer magnetic stirrer for aquarium water test kits. Speed Test Mixer shown in photo. Magnetic stir bars shown in photo. No vials, test kits, batteries, box, manual, or other accessories are included unless shown.
Hanna Checktemp® 1 Digital Thermometer - HI98509
The Hanna Checktemp® 1 Digital Thermometer - HI98509 is a reliable and accurate tool for monitoring the water temperature in fish tanks and aquariums. Made by the trusted brand Hanna, this digital thermometer ensures precise readings to help maintain optimal water conditions for your aquatic pets. Perfect for both hobbyists and professionals, this product is essential for keeping your aquarium environment healthy and thriving.
Hanna HI98319 Waterproof Salinity Tester
The Hanna HI98319 Waterproof Salinity Tester is a reliable and accurate tool for testing and measuring salt levels in marine water for fish tanks and aquariums. This handheld device, designed by Hanna, specifically measures salinity to help maintain proper water conditions for aquatic animals. With its waterproof design, this tester is easy to use and compact, making it a convenient and essential tool for fish and aquarium enthusiasts looking to monitor and treat their water.