Hydro-Logic Merlin GP Green Carbon Filter and roll of pink Teflon

and roll of pink Teflon tap

More consistent heating with fewer hot spots than other seedling heat mats on the market

This kit includes the mixing chamber and all necessary plumbing connections to install into the system

Ideal for air movement from an air pump to air stones

LED display and humidity control (30%–90%)

Hydro-Logic Merlin GP Green Carbon Filter and roll of pink TeflonGreen Coconut Carbon Filters are the carbon block pre filter that will reduce chlorine, organic chemicals, VOCs, mercury, lead, PBCs, sulfur and heavy metals. #741604 is 20 in x 4. 5 in. #728845 is 20 in x 2. 5 in. #741646 is 10 in x 2. 5 in. #741656 is 20 in x 2. 5 in.