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    • Top Sellers

    WaterSafe Well Water Test Kit - for Drinking Water in Home Tap and Well Water | Simple Testing Strips for Lead, Copper, Bacteria, Nitrate, Chlorine, and more | Made in the USA to EPA Standards $24.95 B00028PDO8
    General Hydroponics pH Control Kit for a Balanced Nutrient Solution ★★★★☆ 23402 $18.15 B000BNKWZY
    HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy ★★★★☆ 5331 $16.68 B002C0A7ZY
    PH 1-14 Test Paper Litmus Strips Tester, Universal Application for Saliva Urine Water Soil Testing, 80pcs $6.99 B008IBOG7G
    Digital Aid Professional TDS, EC & Temperature Meter. 3 in 1. Professional Quality TDS Meter:0-9990ppm. Accurate and Reliable Water Test Meter. Ideal for Drinking Water, Aquariums. With Leather Case. $13.97 B00HAKAFGC
    Digital PH Meter PH-009 Pocket Size Water Quality pH Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools - Extra Two Packs of PH Calibration Solution Mixture $11.99 B00N7432II
    pH Test Strips 120ct - Tests Body pH Levels for Alkaline & Acid Levels Using Saliva & Urine. Track & Monitor Your pH Balance & A Healthy Diet, Get Accurate Results in s. pH Scale 4.5-9 $8.11 B00PI6SNKA
    Litmus pH Test Strips, Universal Application (pH 1-14), 2 Packs of 100 Strips $5.50 B00S730YWG
    PH Pen Tester,THZY High Accuracy Pocket Size PH Meter with ATC (Automatic Temperature Compensation) Backlit Light LCD 0-14 pH Measurement Range, 0.01 Resolution Handheld pH Pen Tester $17.99 B00XN4111W
    Digital pH Meter - Pocket Size - pH Pen Tests Household Drinking Water, Aquarium, Swimming Pools, Hydroponics, Water Quality, with ATC, 0-14 pH Measuring Range with 6X pH Buffer Powders. Purple B018J40IKU
    Nurse Hatty® - 200ct. pH Strips NOW Made in USA (ECONOMY SIZE - SINGLE PAD) - pH Test Strips for Alkaline & Acid Levels for Home & Lab Use + Brand New 37pg BONUS PDF Edu Pack - pH Scale of Human Urine $11.95 B01AL4VDRS

    New Releases

    Chattanooga Dura-Stick Plus Self Adhesive Electrodes, 2" x 3.5" Rectangle (40 Pack) $44.99 B00AJV24TU
    Chattanooga Dura-Stick II Self-Adhesive Electrodes - 2" (5 cm) Square $20.10 B00N6G19BE
    Phenylthiourea (PTC) Test Paper for Genetic Taste Testing [Vial for 100 Paper Strips] $4.95 B01A9DOL9I
    Homebrew Guys Best Value Refractometer Kit (0-32 BRIX) with Automatic Temperature Compensation. Easily Measure Sugar levels of Juice, Home Brewing Beer and Wine Making. Complete with all Accessories $27.99 B01AHKZZDE
    Etekcity 2011 Plus Digital pH Meter High Accuracy Water Pen Tester Pocket Size Design with ATC (Automatic Temperature Compensation), 0-14 pH Measurement Range $49.99 B01AI10NQ6
    Nurse Hatty® - 200ct. pH Strips NOW Made in USA (ECONOMY SIZE - SINGLE PAD) - pH Test Strips for Alkaline & Acid Levels for Home & Lab Use + Brand New 37pg BONUS PDF Edu Pack - pH Scale of Human Urine $11.95 B01AL4VDRS
    Homdox Portable pH Tester High Accuracy Handheld pH Meter Yellow with 2xpH Buffer Powders $21.99 B01ALI1EH8
    Homdox Portable pH Tester High Accuracy Handheld pH Meter Red with 2xpH Buffer Powders $21.99 B01ALI1GDK
    B01ALO37WW B01ALO37WW
    Umiin Automatic Calibration Digital pH Meter with ATC,Water Quality Tester 0.01pH High Accuracy, 0.00-14.00 Measurement Range, 0.01 Resolution Measure Handheld PH Pen Tester $25.99 B01AQRTCH8
    PHRite (2 Packs) PH 1-14 Test Paper Litmus Strips Tester, 80pcs Per Pack $6.95 B01BZ792GY
    Jellas Pocket Size pH Meter Digital Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement for 0-14.0 pH (Z-Blue-pH Meter) B01C53HRLY

    Most Gifted

    General Hydroponics pH Control Kit for a Balanced Nutrient Solution ★★★★☆ 23402 $18.15 B000BNKWZY
    PHion Balance Diagnostic Ph Test Strips, 4.5 - 9.0 ph Range, 90-Count $15.30 B000VRU4US
    HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy ★★★★☆ 5331 $16.68 B002C0A7ZY
    PH 1-14 Test Paper Litmus Strips Tester, Universal Application for Saliva Urine Water Soil Testing, 80pcs $6.99 B008IBOG7G
    Ade Advanced Optics BCBI9177 Beer Wort and Wine Refractometer, Dual Scale - Specific Gravity 1.000-1.120 and Brix 0-32%, Replaces Homebrew Hydrometer (Aluminum) $50.99 B00AOCKWMU
    Naruekrit R3-XIKQ-AD0G Proof and Tralle Hydrometer with 12' Glass Test Jar B00FDOHMHM
    pH Test Strips 120ct - Tests Body pH Levels for Alkaline & Acid Levels Using Saliva & Urine. Track & Monitor Your pH Balance & A Healthy Diet, Get Accurate Results in s. pH Scale 4.5-9 $8.11 B00PI6SNKA
    Litmus pH Test Strips, Universal Application (pH 1-14), 2 Packs of 100 Strips $5.50 B00S730YWG
    Brew Tapper Triple Scale Hydrometer for Beer, Wine, Mead & Kombucha - Specific Gravity ABV Tester $32.99 B00TUQIBG0
    HYDROMETER - ALCOHOL, 0-200 PROOF and Tralle ★★★★☆ 1627 $6.99 B013S1VAM4
    Etekcity 2011 Plus Digital pH Meter High Accuracy Water Pen Tester Pocket Size Design with ATC (Automatic Temperature Compensation), 0-14 pH Measurement Range $49.99 B01AI10NQ6
    Nurse Hatty® - 200ct. pH Strips NOW Made in USA (ECONOMY SIZE - SINGLE PAD) - pH Test Strips for Alkaline & Acid Levels for Home & Lab Use + Brand New 37pg BONUS PDF Edu Pack - pH Scale of Human Urine $11.95 B01AL4VDRS