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      1656 Products
      NPK Raw Humic Acid 8oz

      NPK Raw Humic Acid 8oz

      RAW Humic Acid chelate from NPK Industries is derived from Leonardite making it the most water soluble source in today's market. Containing 59% humic acids, it has the ability to balance the soil’s pH as well as being perfect for RO

      In stock
      $ 32.99
      NPK Raw Kelp 8oz

      NPK Raw Kelp 8oz

      RAW Kelp seaweed extract is rich in natural plant growth hormones and beneficial trace elements. Ascophyllum nodosum is harvested from mineral rich waters. Three prominent hormones available are auxins (root growth.

      In stock
      $ 40.99
      NPK Raw kelp 2oz

      NPK Raw kelp 2oz

      RAW Kelp seaweed extract is rich in natural plant growth hormones and beneficial trace elements. Ascophyllum nodosum is harvested from mineral rich waters. Three prominent hormones available are auxins (root growth), cytokins (growth tips

      In stock
      $ 13.99
      NPK Raw Potassium 8oz

      NPK Raw Potassium 8oz

      Raw Potassium by NPK Industries is a technical grade plant supplement that is used for horticultural purposes. Raw potassium contains 50% soluble potash which is the highest concentration of fully water soluble potassium available to the home gardener.

      In stock
      $ 25.99
      NPK Raw Potassium 2oz

      NPK Raw Potassium 2oz

      Raw Potassium by NPK Industries is a technical grade plant supplement that is used for horticultural purposes. Raw potassium contains 50% soluble potash which is the highest concentration of fully water soluble potassium available to the home gardener.

      In stock
      $ 8.99
      NPK Raw Phosphorus 8oz

      NPK Raw Phosphorus 8oz

      is a technical grade plant supplement that is used for horticultural purposes. RAW Phosphorus contains 9% nitrogen and 61% available phosphate, which is the highest concentration of fully water soluble phosphorus available to the home gardener.

      In stock
      $ 25.99
      NPK Raw Phosphorus 2oz

      NPK Raw Phosphorus 2oz

      is a technical grade plant supplement that is used for horticultural purposes. RAW Phosphorus contains 9% nitrogen and 61% available phosphate, which is the highest concentration of fully water soluble phosphorus available to the home gardener.

      In stock
      $ 8.99
      NPK Raw Nitrogen 8oz

      NPK Raw Nitrogen 8oz

      RAW Nitrogen by NPK Industries is a technical grade plant supplement that is used for horticultural purposes. RAW Nitrogen contains 20% Ammoniacal nitrogen.

      In stock
      $ 25.99
      NPK Raw Nitrogen 2oz

      NPK Raw Nitrogen 2oz

      RAW Nitrogen by NPK Industries is a technical grade plant supplement that is used for horticultural purposes. RAW Nitrogen contains 20% Ammoniacal nitrogen.

      In stock
      $ 8.99
      Hanna Groline protective “boot”

      Hanna Groline protective “boot”

      HI710030 is an green rubber boot that fits over selected portable meters including HI9814 pH/EC/TDS, HI991000 family of meters, and selected thermistor based thermometers. The silicone rubber boot not only provides additional shockproof protection

      In stock
      $ 37.95
      Hanna Groline 1413 solution 230ml

      Hanna Groline 1413 solution 230ml

      conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight

      Out of stock
      $ 17.95
      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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