7010051 ARK M200/M300 CK1 8"- 10"
PART# 7010051 ARK M200/M300 CK1 8"-10". COMPLETE #1 CHECK AND CHECK ORING.
Ames 7010054 ARK M200/M300 CK2 6"
Ames M200 or M300 complete #2 check assembly and o-ring for 6" assembly