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    RO water/Meters and solutions

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    58 Products
    Hanna Calibration solution 4.0 and 7.0

    Hanna Calibration solution 4.0 and 7.0

    a set of premium quality pH 4.01 and 7.01 calibration buffers produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances.

    In stock
    $ 22.00
    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
    Netafim 17mm techlock tees

    Netafim 17mm techlock tees

    The Netafim 17mm Techlock Fittings have barb ends that fit securely on the UV Polyethylene Tubing (HGC747559) while the techlock threaded caps and compression rings ensure a tight seal. The operating pressure is 0 to 100 psi.

    In stock
    $ 3.55
    Clonex 15ml packets

    Clonex 15ml packets

    Foremost rooting compound gel in its field since 1989; Full spectrum of mineral nutrients and trace elements to nourish the young roots during the formative stages; Remains in contact around the stem sealing the cut tissue; Supplies hormones needed for ro

    In stock
    $ 7.00
    Hydrologic stealth R/O with upgraded kefir filter

    Hydrologic stealth R/O with upgraded kefir filter

    Our Stealth-RO300 comes with the upgraded KDF85/granulated catalytic carbon filter already installed. Perfect for hydroponic gardens requiring up to 300 gallons a day of pure reverse osmosis (RO) water.
    Produces up to 300 GPD (gallons per day)/12 GPH (ga

    Out of stock
    $ 359.95
    Hanna Groline cleaning solution 500ml

    Hanna Groline cleaning solution 500ml

    HI7061-050 is the GroLine general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna's cleaning solutions eli

    In stock
    $ 19.00
    Hydrologic small boy R/O Catalytic carbon filter

    Hydrologic small boy R/O Catalytic carbon filter

    Instant de-chlorinator and sediment filter with upgraded KDF85/Catalytic Carbon filter. Stand alone. 1-Gallon per minute. Small Boy w/ Upgraded KDF85/Catalytic Carbon Filter.

    Out of stock
    $ 175.00
    Stealth ro 150gph membrane

    Stealth ro 150gph membrane

    Stealth-ro150/300 RO membrane reduces 89%+ of ppm of total dissolved solids.

    In stock
    $ 165.60
    3000ml measuring cup

    3000ml measuring cup

    Sturdy, non-breakable food grade plastic cups with graduated metric markings and reinforced handle. Available in five convenient sizes.

    Out of stock
    $ 18.99
    Netafim 17mm techlock elbows

    Netafim 17mm techlock elbows

    The Netafim 17mm Techlock Fittings have barb ends that fit securely on the UV Polyethylene Tubing (HGC747559) while the techlock threaded caps and compression rings ensure a tight seal. The operating pressure is 0 to 100 psi.

    In stock
    $ 2.99
    Netafim 17mm shut off valve

    Netafim 17mm shut off valve

    Tech-Line Shut off valve
    17mm
    Maximum recommended system pressure: 50 psi

    In stock
    $ 5.50
    Hydroflow rubber grommet 3/4”

    Hydroflow rubber grommet 3/4”

    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
    $ 0.79
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