Creating air-tight seals on a pressurized spray foam gun is a must and o-
rings are a key component to a properly functioning gun. SPF Depot manufacturers certified DuPont Viton o-rings for the
Fusion AP Gun that outlasts the OEM Graco equivalent. With regular use, SPF gun o-rings will dry out and lose their
elasticity. For optimal spray application and gun pressure, we recommend you routinely replace you Graco fusion gun o-
ring. Don’t forget to remove the rings when cleaning your spray foam gun parts. The solvents that melt cured foam will
drastically shorten the life of spray polyurethane foam gun o-rings. Shop our bulk o-rings today; spray gun seal repair
has never been easier or more affordable.