This is the Harder And Steenbeck 123911 Evolution CR Plus Seal Kit.

Fits:
* Evolution CRplus
* Evolution ALplus

Contains the following seals:
2 x 123190 Viton Air Cap Seals
2 x 123180 Teflon / PTFE Nozzle Seal
3 x 123450 Teflon / PTFE Needle Seal
1 x 126340 Teflon / PTFE Paint Cup Seal
1 x 123240 Nitrile Air Valve Body Seal
1 x 123220V Teflon / PTFE Upper Air Valve Seal
1 x 123220 Nitrile Lower Air Valve Seal
1 x 123290 Quick Connect Seal