10'' Backdraft Damper lighting-&-electrical-components Replacement membrane filter for the

Replacement membrane filter for the HydroLogic Merlin (Garden Pro) Reverse Osmosis filtration system

Featuring coco chips (croutons) to balance aeration with lingering water retention

high-flow rate design utilizing NSF certified Natural Coconut Shell Activated Carbon to eliminate chlorine and sediment contamination

Not only does this pack gives you a taste of our amazing grow- and bloom nutrients

10'' Backdraft Damper lighting-&-electrical-components Replacement membrane filter for theMade of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backwards. Rubber gasket pre installed on exterior for an air tight seal.