HydroLogic TALLBoy Green Coconut Carbon Filter | 10 Micron, 7,500 Gal

HydroLogic TALLBoy Green Coconut Carbon Filter, the Dechlorination Stage

This cartridge is the carbon stage of HydroLogic's TALLBoy dechlorinator, and it also fits the TALLBlue housing. It is a solid block of activated carbon made from green coconut shell, rated at 10 micron nominal. Water passing through the block leaves free chlorine behind, along with volatile organic compounds, lead, mercury and PCBs. Taking chlorine out keeps it from knocking back the beneficial bacteria and fungi working in the root zone. The block measures 2.5 x 20 in and seats in the stock canister behind the sediment stage. Service life runs about 7,500 gallons of filtered water in a TALLBoy. In a TALLBlue, plan on about 4,500 gallons before replacement. Pressure drop through the block stays low, so the system's flow to the reservoir holds steady. HydroLogic states that it releases no carbon fines and meets NSF/ANSI 61 for material safety, with performance validated by the WQA. Coconut shell carbon is a renewable media, and that matters to growers watching their footprint.

Where a Coconut Carbon Block Fits in a Tap Water Setup

Install it directly after the sediment cartridge so grit never reaches the carbon. Run the water to waste for a few minutes on a new block before filling a tank. Then fill the reservoir as normal and let the water go straight to plants or into a nutrient mix. Track gallons with a meter or a fill log, because spent carbon gives no visible warning. Know your water report before relying on it alone. HydroLogic's own chart lists this media for chlorine, not chloramine, so supplies treated with chloramine need a chloramine-rated stage instead. Iron and sulfur reduction is limited, and hard water minerals pass straight through. Keep the housing shaded and above freezing so the block is not stressed between uses. Replace it on schedule rather than stretching it, since an exhausted block lets chlorine back into the feed water. Fitting original HydroLogic cartridges also keeps the system warranty in force.

Key Features

• Green Coconut Carbon: Activated coconut shell carbon strips free chlorine and organic chemicals from tap water.
• Heavy Metal Reduction: The block reduces lead and mercury along with VOCs and PCBs.
• 10 Micron Block: The dense block catches fine particles while carbon does the chemical work.
• Low Pressure Drop: Flow to the reservoir stays steady with no carbon fines released downstream.
• TALLBoy and TALLBlue Fit: The 2.5 x 20 in cartridge drops into either stock canister behind the sediment stage.
• NSF/ANSI 61 Materials: Materials meet NSF/ANSI 61, with performance validated by the WQA.

Technical Specifications