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      Water Filters / RO

      RO water/Meters and solutions

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      76 Products
      Hydro-logic micRO-75 membrane

      Hydro-logic micRO-75 membrane

      Replace membranes when product water decreases and/or ppm increase. Merlin Garden Pro and Evolution RO1000 membranes reduce 94%+ of total dissolved solids.

      In stock
      $ 84.15
      Bluelab ph probe KCI storage solution 250ml

      Bluelab ph probe KCI storage solution 250ml

      The perfect solution to store and hydrate your Bluelab pH probes or pens

      Features:

      Contains 250 ml/8.4 fl oz
      Compatible for use with Bluelab pH Pens, Bluelab Soil pH Pens, Bluelab pH Probes, and Bluelab Soil pH Probes
      Shipping & Returns

      Out of stock
      $ 31.45
      Hydrologic chlorashield filter

      Hydrologic chlorashield filter

      100% Chloramine Removal down to 1 micron rating. Rated at 2 GPM, the low pressure drop, combined with exceptionally high dirt holding capacity, makes it great for treating city water. Made in the USA Replace after 6,000 gallons.

      In stock
      $ 39.05
      AC Infinity VPD thermometer

      AC Infinity VPD thermometer

      A highly innovative laser thermometer gun designed to instantly measure leaf VPD, air VPD, ambient temperature, leaf temperature, and relative humidity to precisely calculate true VPD data.

      In stock
      $ 33.62
      Com 80-S Hydro tester

      Com 80-S Hydro tester

      The COM-80 is easily the most advanced, economically priced, reliable EC/TDS meter on the market. With its versatility and durability, it is ideal for testing applications such as hydroponics & gardening, drinking water, and more.

      In stock
      $ 49.90
      Ac Infinity Replacement Probe Hydro

      Ac Infinity Replacement Probe Hydro

      A replacement probe specially made for the AC Infinity Hydroponic Meter PRO to detect pH levels, measuring acidity and basicity in water solutions. Using this probe will increase your savings by eliminating the need to purchase brand-new pH meters.

      In stock
      $ 71.60
      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

      In 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.

      In stock
      $ 14.11
      Ac Infinity Ph Hydroponic PRO Meter Kit

      Ac Infinity Ph Hydroponic PRO Meter Kit

      A digital hydroponic testing meter for measuring water’s acidity, alkalinity, electrical conductivity (EC), total dissolved solids (TDS), temperature, and salinity (salt content) to help optimize its quality for gardening and water treatment applications.

      In stock
      $ 181.18
      Ac Infinity pH meter Pro Kit

      Ac Infinity pH meter Pro Kit

      A digital water quality meter designed to measure water’s acidity, alkalinity, and temperature to help optimize its quality for gardening and water treatment applications.

      Out of stock
      $ 103.06
      Grow1 1/2” barbed fitting float valve

      Grow1 1/2” barbed fitting float valve

      Take control of your indoor garden's watering with the Hydro-Logic 1/2-inch barbed Float Valve. This adjustable valve automatically maintains your desired water level, preventing overflows and ensuring your plants receive the perfect amount of hydration.

      In stock
      $ 16.99
      Grow1 3/8” quick connect float valve

      Grow1 3/8” quick connect float valve

      The Hydro Logic RO Float Valve features a 3/8" quick-connect fitting and adjustable water level, and can be mounted vertically or horizontally. Using stainless steel and PVC components, this float valve enables you to fill a reservoir or tank unattended.

      In stock
      $ 15.99
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