• Perfect Fit: Each Low Impedance FT Injector (320 lb/h, 520 lb/h, 720 lb/hr & 820lb/h) fits one upper o-ring and two lower o-rings. High Impedance FT Injectors (170 lb/h & 240 lb/h) fit two upper o-rings. • Precise Dimensions: Upper - (7.52 x 3.53), Lower - (7.59 x 2.62). • Trusted Replacement: Ideal for maintaining your FuelTech FT injectors.

Use these O-rings when you need to replace the old ones in your FuelTech FT injectors. They're great for car enthusiasts and mechanics who want to keep their engines running smoothly. The upper O-ring has dimensions of 7.52 x 3.53 and the lower one is 7.59 x 2.62.