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      73 Products
      Hanna groline quick cal 120ml

      Hanna groline quick cal 120ml

      Hermetically sealed so that fresh solution is always used for accurate calibration.
      Combined pH and EC calibration solution.
      Size: 20ml

      Out of stock
      $ 14.11
      Hanna Groline storage solution 120ml

      Hanna Groline storage solution 120ml

      Store your pH electrode with the Hanna Instruments GroLine Storage Solution. Properly storing pH electrodes is vital to prolonging the life of your electrode while maximizing regular performance.

      Out of stock
      $ 14.11
      Grow1 1/4” quick connect float valve

      Grow1 1/4” quick connect float valve

      This float valve will allow you to control the water level of your tank or reservoir with no maintenance. They can be mounted vertically or horizontally. Each one comes with a mounting nut and rubber seal.

      In stock
      $ 15.99
      Ph 7.01

      Ph 7.01

      a high quality pH 7.01 calibration buffer produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances.

      In stock
      $ 18.50
      Ph 4.01

      Ph 4.01

      a high quality pH 4.01 calibration buffer produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances.

      Out of stock
      $ 18.50
      General hydroponics ph down gallon

      General hydroponics ph down gallon

      The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product.

      In stock
      $ 38.99
      Hydroflow rubber grommet 1”

      Hydroflow rubber grommet 1”

      Choose from the 4 sizes of Hydro Flow grommets to fit your needs
      Made from rubber
      Sold in bag or case quantities only
      Choose from the 4 sizes of Hydro Flow Grommets to fit your needs
      Made from rubber
      Easy seal application makes these a breeze to inst

      In stock
      $ 1.59
      Small boy sediment pre filter

      Small boy sediment pre filter

      Replacement sediment filter for Small Boy RO filter
      Keeps silt, rust, sand, and other particulate matter out of your water supply
      Estimated 3,000-gallon capacity
      Removes Silt, Sand and Rust From The Water Supply
      Small Boy Replacement Sediment Filter

      In stock
      $ 16.99
      Netafim uc poly tubing 17mm 1 FOOT

      Netafim uc poly tubing 17mm 1 FOOT

      Polyethylene Tubing is UV and acid resistant, made from the highest quality resins available.

      In stock
      $ 0.40
      HydroLogic Stealth RO 150

      HydroLogic Stealth RO 150

      Removes 98%+ of all contaminants in your tap water
      3-Stage RO unit, 1 RO membrane, Green Coconut Carbon Filter, cleanable sediment filter, membrane power flush kit, automatic shut-off valve, pressure gauge

      In stock
      $ 304.99
      Bluelab PH 7.0 Calibration solution

      Bluelab PH 7.0 Calibration solution

      250 ml of Calibration Solution pH 7.0

      Out of stock
      $ 15.99
      Hanna Groline quick cal 230ml

      Hanna Groline quick cal 230ml

      solution for use with Hanna's GroLine pH and/or EC/TDS meters. Using the Quick Cal function found in compatible meters allows for a single point calibration for pH and/or conductivity sensors. Each bottle has the lot number and expiration date.

      Out of stock
      $ 17.95
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