This kit contains the hardware required to support a leather gasket in pre-2008 SILCA floor pumps.
- Kit includes 5 parts
- Locking Nut, lower washer, and back nut are universal to all PISTA and SUPERPISTA Pumps
- 28mm diameter or pumps prior to 2008 us the thicker 24.6mm back washer
- 30mm diameter or pumps after 2008 will use thinner 28mm back washer