Activated Carbon Refill 1200+ IAV Australian Charcoal, 8lb Mycorrhizae & Beneficial Bacteria RAW Kelp is a beneficial

RAW Kelp is a beneficial supplement to all feeding schedules

The duct carbon filter effectively blocks out unwanted odors and chemicals using its bed of premium Australian charcoal

This rich formulation is fortified with a boost of all three primary macroelements: nitrogen

one inline speed controller

excluding the tumbler

Activated Carbon Refill 1200+ IAV Australian Charcoal, 8lb Mycorrhizae & Beneficial Bacteria RAW Kelp is a beneficialRefillable Carbon Filter Kit, With Charcoal Refill Premium charcoal granules intended to refill carbon filters and efficiently scrub air in grow spaces. Actively improves air quality and promotes cleaner ventilation by blocking out odors and chemicals. Increased porosity of granular surface adsorbs greater amounts of unwanted substances than pellets. RC412 Virgin charcoal sourced from Australia features a 1200+ IAV rating for an extended lifespan.