3,400+ results for aquarium water test
- Aquarium Water Heater 100W-500W Submersible Fish Tank QUARTZ Ultral Short 110VOpens in a new window or tabBrand New$19.99 to $23.99Save up to 6% when you buy morelyphardaquarium (265) 99.2%Free shippingFree returns
- 7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips 50/100pcOpens in a new window or tabBrand New$9.89 to $11.99yiji890 (277) 97.6%Free shipping
- 100/50x Aquarium Test Strips Fish Tank 7 in1 PH Water Test Strips Kit FreshwaterOpens in a new window or tabBrand New$9.99 to $11.79Buy 1, get 1 22% off with couponTop Rated PlusFree shippingwomeaq (17,214) 98.9%Free returns
- 7 in 1 Aquarium Test Kit 100Pcs Pond Test Strips Freshwater Saltwater Fish TankOpens in a new window or tabBrand New$10.88gooasis (12,435) 99.8%Was: $16.99 36% off+$4.00 shipping165 sold
- 100/50 Aquarium Test Strips Fish Tank 7IN1 PH Water Test Strips Kit Freshwater.Opens in a new window or tabBrand New$9.86 to $11.38Save up to 10% when you buy moreWas: $10.38 5% offTop Rated Plusaseferttsfj02 (9,959) 98.9%Free 4 day shippingFree returns
- SEACHEM AMMONIA ALERT AQUARIUM WATER TEST FRESHWATEROpens in a new window or tabBrand New$12.99riftlakeaquatic (12,867) 100%Free 4 day shipping36 sold
- API Ammonia Test Strips Saltwater & Freshwater Aquariums 25 Tests Exp 1/26Opens in a new window or tabBrand New$12.00aang11 (2,192) 100%Free shippingFree returns
- API Ammonia Test Kit 130 Tests for Freshwater and Marine Aquariums NH3 / NH4Opens in a new window or tabBrand New$13.00xionm-25 (234) 99.4%Free shippingLast one2 watchers
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Sponsored | Top selling items from highly rated sellers with free shipping- 50/100x Pond Test Strips 7in1 Water Testing Kit for Freshwater Aquarium FishTankOpens in a new window or tabBrand New$9.99 to $10.99Save up to 13% when you buy moreTop Rated PlusFree 3 day shippingaseferttsfj01 (7,520) 99%Free returns
- API FRESH WATER MASTER TEST KIT, OVER 800 TESTS, SEALED, NEW! Exp 12/2026 & UP!Opens in a new window or tabBrand New$34.90flybuy014 (4,966) 100%Free shippingLast one22 sold
- TDS Meter Digital Water Tester,ppm Meter LCD Display F Drinking Water,AquariumsOpens in a new window or tabBrand New$9.99Top Rated PlusWas: $13.32 25% offdomesticwaterfilterexpert (27,785) 99.7%Free shippingFree returns111 sold
- Tetra EasyStrips 6-in-1 Aquarium Test Strips for Fresh/Salt WaterOpens in a new window or tabBrand New$18.49leftys0528 (148,987) 99.5%Free shipping140 sold
- 6 in 1 Aquarium Test Kit 100Pcs Test Strips Freshwater Saltwater Fish TankOpens in a new window or tabBrand New$10.50Save up to 10% when you buy morefabara70 (114) 100%+$2.50 shipping102 sold
- 100pcs 16 in 1 Drinking Water Test Kit Strips, Home Water Quality Test for Tap!Opens in a new window or tabBrand New$12.79 to $16.89Top Rated Pluscfdeswas02 (3,646) 99.1%Free shippingFree returns60+ sold
- 100Pcs Aquarium Test Strips Fish Tank 7IN1 PH Water Test Strips Kit FreshwaterOpens in a new window or tabBrand New$10.29Save up to 5% when you buy moreWas: $14.99 31% offstarstartusd (298) 100%+$4.00 shipping192 sold
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.89Save up to 7% when you buy moretheperfectpart (868,125) 100%Free shippingFree returns2,372 sold
- API Freshwater Master Test Kit 800+ Fresh Water Tests pH Ammonia Nitrate NitriteOpens in a new window or tabBrand New$35.99Top Rated PlusWas: $42.34 15% offasap-aquarium (8,540) 99.9%Free shippingFree returns56 sold
- API Aquarium Fresh Water GH & KH General & Carbonate Hardness Test KitOpens in a new window or tabPre-Owned$9.00underwaterlife (275) 100%Free shipping
- 50pcs 7 in1 Aquarium Fish Tank Water Tropical Test Strips Kit Nitrite Strips_~yOpens in a new window or tabBrand New$7.75yggb719 (6,081) 96.7%Free shipping
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- 4 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$18.98Save up to 10% when you buy moreList price: $28.98 35% offTop Rated Pluseeekitonline (449,861) 99.2%Free shippingFree returns276 sold
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- API POND WIDE RANGE pH TEST KIT 160-Test Pond Water Test KitOpens in a new window or tabBrand New$12.98pondandpetdirect (32) 100%Free shipping
- API Pond Care Wide Range pH Test KitOpens in a new window or tabBrand New$6.50feedstoreandmore (2,329) 100%Free shipping
- API 5 in 1 Aquarium Test Strips for Freshwater and Saltwater AquariumsOpens in a new window or tabBrand New$6.98 to $71.19alotofhome (5,791) 99.2%+$3.95 shipping
- 100Pcs Aquarium Test Strips 7 in 1 Fish Tank Test Kit Freshwater Saltwater HAOpens in a new window or tabBrand New$14.39 to $16.09halflotus_h (1,622) 98.6%Free shippingfrom Canada
- 7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips 50/100xOpens in a new window or tabBrand New$9.86 to $11.38Save up to 12% when you buy moreTop Rated PlusFree shippingtractdino (8,267) 98.1%Free returns
- API Saltwater Master Test Kit, Expires 11 / 2025- UPC: 317163134016Opens in a new window or tabBrand New$4.99az_sell (13,455) 98.9%1 bid · Time left23h 23m left (Sat, 03:00 AM)+$9.50 shipping
- Drinking Water Test Kit Strips, 100 cnt. 16 in 1 Home Water Quality Test for TapOpens in a new window or tabBrand New$13.29 to $14.99Save up to 15% when you buy moreeuroad (25,451) 98.6%Free shipping102+ sold
- Tetra EasyStrips 6-in-1 Aquarium Test Strips, 25 StripsOpens in a new window or tabBrand New$9.00camelkountrycoffee (76) 98.6%Free shipping
- 100pcs Aquarium Test Strips Fish Tank 7IN1 PH Water Test Strips Kit Freshwater ~Opens in a new window or tabBrand New$9.97 to $17.9910% off 3+ with couponautopartsaffordable (2) 100%Free shippingFree returns
- API Saltwater Master Test Kit Marine pH Ammonia Nitrite Nitrate Multi Test KitOpens in a new window or tabBrand New$35.99Top Rated PlusWas: $42.34 15% offasap-aquarium (8,540) 99.9%Free shippingFree returns
- LCD PH Meter Tester Digital Electric Water Test Pen Pocket Hydroponics AquariumOpens in a new window or tab⭐️⭐️⭐️⭐️⭐️ ✅ US Seller ✅High Quality ✅ Fast ShippingBrand New$8.99topfuture2018 (15,599) 99.4%Free shippingFree returns642 sold
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- API Copper Test Kit for Freshwater & Saltwater Aquariums 90 TestsOpens in a new window or tabBrand New$13.99Top Rated PlusWas: $16.46 15% offasap-aquarium (8,540) 99.9%Free shippingFree returns
- API AMMONIA 130-Test Freshwater and Saltwater Aquarium Water Test KitOpens in a new window or tabBrand New$16.98pondandpetdirect (32) 100%Free shipping
- 16 in 1 Drinking Water Test Kit Strips 7 in 1 Home Water Quality Test for Tap USOpens in a new window or tabBrand New$9.97 to $15.76Save up to 12% when you buy moreWas: $16.59 5% offTop Rated Plusaseferttsfj02 (9,959) 98.9%Free shippingFree returns
- 100/50x Aquarium Test Strips Fish Tank 7IN1 PH Water Test Strips Kit FreshwaterOpens in a new window or tabBrand New$9.79 to $11.79Save up to 20% when you buy moreTop Rated PlusFree shippinghplawe (7,277) 98.6%Free returns
- API Replacement Test Tubes for Aquarium Test Kits 6 Pack BundleOpens in a new window or tabBrand New$13.89casagoods (632) 98.6%Free shipping
- API Ammonia Test Kit 130 Tests for Freshwater and Marine Aquariums NH3 / NH4Opens in a new window or tabBrand New$15.99Top Rated PlusWas: $18.81 15% offreef-shop (25,490) 99.9%Free shippingFree returns
- API Ammonia Test Strips for Saltwater & Freshwater Aquariums 25 Tests Dip & ReadOpens in a new window or tabBrand New3 product ratings - API Ammonia Test Strips for Saltwater & Freshwater Aquariums 25 Tests Dip & Read$16.99Top Rated PlusWas: $19.99 15% offasap-aquarium (8,540) 99.9%Free shippingFree returns
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.74Top Rated PlusWas: $8.99 25% offcablewirecanada (69,496) 96.6%Free shippingFree returns348 sold
- Digital Electric PH Meter Tester LCD Hydroponics Aquarium Water Pocket Test PenOpens in a new window or tabBrand New$8.99Save up to 15% when you buy moreWas: $17.98 50% offTop Rated Plusgatorcable (257,618) 99.7%Free shippingFree returns
- 🐠API High Range pH Test Kit Freshwater & Saltwater Marine 160 Tests Exp 2/27 🐠Opens in a new window or tabBrand New$12.00what-u-must-have (14,922) 99.4%Free shippingLast one2 watchers
- API AMMONIA 130-Test Freshwater and Saltwater Aquarium Water Test KitOpens in a new window or tabBrand New$14.00parker_pola (120) 100%+$4.20 shipping
- 100pcs Aquarium Test Strips Fish Tank 6IN1 PH Water Test Strips Kit FreshwaterOpens in a new window or tabBrand New$12.98Save up to 5% when you buy moretichionya (400) 96.5%Free shipping
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.95Top Rated Plusthebatteryconnection (931,534) 98%Free shippingFree returns106 sold
- API 5 in 1 Aquarium Test Strips 100 Count pH KH GH Nitrate Freshwater SaltwaterOpens in a new window or tabBrand New$26.99Top Rated PlusWas: $31.75 15% offasap-aquarium (8,540) 99.9%Free shippingFree returns
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- Aquarium Test Strips - 9-in-1 Aquarium Test Kit with eBook - Aquarium Water T...Opens in a new window or tabBrand New$23.75mayasalomon14144 (188) 98.3%Free shipping
- API LR1800 Nitrate 90-Test Freshwater & Saltwater Aquarium Water Test KitOpens in a new window or tabBrand New$15.00parker_pola (120) 100%Free shipping
- API Ammonia Test Kit 130 Tests for Freshwater & Salt Aquariums NH3/NH4 EXP 10:28Opens in a new window or tabBrand New$12.50aang11 (2,192) 100%Free shippingFree returns
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- New Imagitarium Test 5-IN-1 AQUARIUM WATER TEST STRIPS Freshwater 10ct Exp 5/26Opens in a new window or tabBrand New$7.99ironivy (9,641) 99.7%Free shipping
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master TestOpens in a new window or tabBrand New$37.88pondandpetdirect (32) 100%Free shipping
- API Hardness GH & KH Test Kit - Fish Tank Aquarium Testing MaintenanceOpens in a new window or tabBrand New$14.47Save up to 18% when you buy moreplants_n_fins (3,193) 96.8%Free shipping42 sold
- API Ammonia Test Strips Saltwater & Freshwater Aquariums 25 Tests Exp 2/26🐠Opens in a new window or tabBrand New$15.99what-u-must-have (14,922) 99.4%Free shipping
- API KH Test Kit Carbonate Hardness Test for Marine and Freshwater AquariumsOpens in a new window or tabBrand New$11.99Top Rated PlusWas: $14.11 15% offreef-shop (25,490) 99.9%Free shippingFree returns
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.79living-3808 (2,146) 98.5%Free shippingFree returns106 sold
- 4 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$18.98Save up to 15% when you buy moreList price: $28.98 35% offTop Rated Plusthesiliconvalley (459,664) 99.5%Free 3 day shippingFree returns1,981 sold
- Aquarium 7 in 1 Test Strips Water Test Kit Fish Tank Freshwater marine AccurateOpens in a new window or tabBrand New$14.99xu_zi_wei (16,150) 98.8%Free shippingfrom ChinaFree returns63 sold
- API 5 in 1 Aquarium Test Strips for Freshwater and Saltwater Aquariums 25 TestsOpens in a new window or tabBrand New58 product ratings - API 5 in 1 Aquarium Test Strips for Freshwater and Saltwater Aquariums 25 Tests$15.99Top Rated PlusWas: $18.81 15% offreef-shop (25,490) 99.9%Free shippingFree returns
- 50pcs Ammonia Nitrogen Test Paper Quick Water Quality Test Strips for AquariumOpens in a new window or tabBrand New$13.61Buy 1, get 1 25% off with couponWas: $15.29 11% offjuejzh (487) 97.3%Free shipping
- Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPMOpens in a new window or tabBrand New$9.99Top Rated Plusinkcredibleprinting (700,427) 97.8%Free shippingFree returns698 sold
- API Phosphate PO4 Test Kit (150 Count) for Freshwater & Saltwater Fish TankOpens in a new window or tabBrand New$16.47Save up to 18% when you buy moreplants_n_fins (3,193) 96.8%Free shipping
- 100pcs Aquarium Test Strips Fish Tank 7IN1 PH Water Test Strips Kit FreshwaterOpens in a new window or tabBrand New$9.97 to $17.9915% off 3+ with couponautoparts_geeker (0) 0%Free shippingFree returns
- RIKKA FRESH WATER AQUARIUM TEST KIT PHOSPHATE, NITRATES, IRON, 150 TESTSOpens in a new window or tabBrand New$8.09armand_6117 (97) 100%+$6.22 shippingfrom Ukraine14 sold
- 16 in 1 Drinking Water Test Kit Strips, 100 cnt. Home Water Quality Test for TapOpens in a new window or tabBrand New9 product ratings - 16 in 1 Drinking Water Test Kit Strips, 100 cnt. Home Water Quality Test for Tap$19.99Save up to 5% when you buy moremedlabdiagnostics (1,471) 100%Free shipping2,005 sold
- Digital Electric PH Meter LCD Tester Hydroponics Aquarium Water Pocket Test PenOpens in a new window or tabBrand New$7.99Save up to 15% when you buy morecar-market2019 (10,993) 99.3%Free shippingFree returns
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