Description
ATTWOOD Angled Stainless Steel Deck Fill Assembly for Pressure-Relief Fuel Systems – 99DFPVASY1-1 is an Attwood marine fuel-system component. Fuel-system parts must be selected by system architecture, hose/tank connection size and emissions configuration; this part should not be substituted solely by appearance.
Key Features
- Angled deck fill for pressure-relief fuel systems
- Dual 1 psi overpressure-relief safety valves
- Triple high-flow vacuum valves
- Automatic nozzle shutoff over 4–18 GPM fill rates
- Designed to limit water intrusion
- Compatible with ethanol-blended gasoline
- Dual Safety Valves: Dual 1 PSI diurnal emission control and overpressure relief valves
- Automatic Shutoff: Supports nozzle flow rates from 4 to 18 GPM with automatic shutoff
Specifications
- Manufacturer: Attwood
- Manufacturer Part Number: 99DFPVASY1-1
- Fill Hose: 1-1/2″
- Vent Hose: 5/8″
- Cap: Stainless-steel Y1-style cap
- Body: Angled
Installation & Compatibility
Fuel-system work requires leak-free connections, correct vent routing and ignition-safe service practices. Verify the vessel’s certified fuel-system layout and Attwood installation documentation before replacing valves, vents, deck fills or carbon-canister components.
Selection Note
Do not alter a certified evaporative-emissions fuel system without confirming the replacement component matches the original system architecture.

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