Attwood Deck Fill f/Carbon Canister System - Angled Body & Scalloped Stainless Steel Cap

The Attwood Deck Fill for Carbon Canister System with Angled Body and Scalloped Stainless Steel Cap is a critical fuel system component designed to manage vapor emissions and maintain safe fuel tank pressure in modern marine engines. This deck fill assembly combines fuel delivery with automatic diurnal emission control and integrated overpressure relief, making it an essential upgrade for boats requiring EPA-compliant vapor management systems.

Built into the cap are overpressure relief safety valves engineered to release pressure above 1 psi, preventing tank rupture from thermal expansion or excessive fuel vapors. High-flow vacuum valves allow fresh air to enter the fuel tank as the engine consumes fuel, eliminating dangerous vacuum conditions that can collapse fuel lines or restrict fuel flow to the engine. The angled body design optimizes deck mounting geometry, while the scalloped stainless steel cap resists corrosion in salt-air environments and provides secure, ergonomic access for refueling. At 0.75 lbs, the assembly adds minimal weight while delivering robust vapor control functionality required by modern marine emissions standards.

This deck fill is intended for boat owners and marine technicians installing or upgrading to carbon canister fuel system configurations. It serves vessels that require compliant fuel vapor containment—particularly those operating in freshwater or coastal environments where emissions regulations apply. Proper installation of this component prevents fuel smell, reduces atmospheric hydrocarbon release, and ensures reliable fuel delivery under varying sea conditions and ambient temperatures.

Attwood Marine's deck fills are recognized within the boating industry for integration with OEM and aftermarket carbon canister systems. The combination of mechanical pressure relief, vacuum valve function, and stainless hardware in a single deck-mounted assembly simplifies fuel system design while meeting the dual requirements of safe fueling and emissions control on modern recreational and commercial watercraft.