Watts 0888520 (Ames 7016637) – 3/4″ 1st Check Assembly Kit for 009M3 or Ames 4000BM3

Watts 0888520 – 3/4″ First Check Assembly Repair Kit for 009M3 CK1 RP (Same As AMES 7016637)

Ames: 3/4″ – 1st Check Module for a 4000BM3 RP

KIT INCLUDES:  check assembly and cover O-ring.