The Superior Parts SP 502026 is a high-quality aftermarket ribbon spring designed for Paslode F350-21, PF350S and Duo-Fast DF350S framing nailers. This essential replacement restores proper recoil function, ensuring smooth and consistent nail firing. Engineered for durability, it withstands repeated use in demanding job site conditions without losing tension or performance. Precision-manufactured for a secure fit, it seamlessly integrates with your nailer for reliable operation. A cost-effective solution trusted by professionals to maintain peak tool efficiency.