Complete o-ring set for all versions of the F1.

1x M1.5 x 10.0 (Buna 70) - Front Outside of Nozzle
2x M1.5 x 13.0 (Buna 70) - Rear Outside of Nozzle
1x M1.5 x 15.5 (Buna 70) - Donut
1x M1.0 x 20.0 (Buna 70) - Donut
1x M1.5 x 21.0 (Buna 70) - Front Cylinder
1x M1.0 x 4.5 (Buna 70) - Barb Fitting