The red plastic collar around my check valve has seen  better days.  On my series-1 Z it had a black rubber collar around the check valve and looked new.  Does anyone know where to find these?  I hate to buy a whole new valve when I just want to replace the collar.  I looked around at Home Depot for awhile and did not really find anything.  Any ideas or suggestions are greatly appreciated.  Thank you!

240zrubberparts.com  has 2 black ones left and sold out of red ones.

Awesome!  Thank you 240dkw.