Standard Carbon CanisterCarbon canister systems utilize an engineered charcoal canister to reduce hydrocarbons entering the atmosphere. Other components of a carbon canister system are designed to ensure the tank fills to the proper level every time without spit-back or well-back. All Attwood carbon canister systems are designed to ensure liquid fuel or water does not reach the canister and are compatible with Jerry Can and marine nozzle refueling.Features:Brackets OEM InstalledLow permeation shell reduces overall system emissionsCan be mounted in any orientation using brackets providedEPA / CARB CertifiedFits a 5/8″ vent hoseSpecifications:Trailerable Vessel Capacity (EPA Rating): 220 GallonNon-Trailerable Vessel Capacity (EPA Rating): 350 GallonTrailerable Vessel Capacity (CARB Rating): 176 GallonNon-Trailerable Vessel Capacity (CARB Rating): 350 Gallon*Compatible with Ethanol blended fuels Quick Guide (pdf)