Hydro-Logic Big Boy - Carbon Filter - Green - Coconut Active Aqua our classic ballistic backpack is

our classic ballistic backpack is the industry standard for carbon-lined backpacks

It is extremely concentrated

5 Gallon (2/cs)

Abscent's Backpack with insert also features: Water resistant exterior

-Reliable metal gear construction makes for whisper quiet operation

Hydro-Logic Big Boy - Carbon Filter - Green - Coconut Active Aqua our classic ballistic backpack isGreen 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 x 4. 5 inch. #728845 is 20 x 2. 5 inches. #741646 is 10 x 2. 5 inches. #741656 is 20 x 2. 5 inches.