Hydro-Logic Big Boy - Carbon Filter - Green - Coconut Active Aqua By combining Advanced Nutrients pH

By combining Advanced Nutrients pH Perfect ® Micro with pH Perfect Grow and pH Perfect Bloom

4 or 6 layers

It is extremely concentrated

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

Luxx Lighting DE 1000 HPS Lamp 120V ~240V Special Order Item

Hydro-Logic Big Boy - Carbon Filter - Green - Coconut Active Aqua By combining Advanced Nutrients pHGreen 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.