Watts 007M2 repair kit for a 3/4" #1 check. Kit includes the check and o-ring. This is the complete check assembly.  Pull the old out and put the new in.

Watts 3/4" 007M2 repair kit- second check kit. Kit includes seat, seat o-ring, disc assembly, spring check cage and cover o-ring. 

Watts 1 1/4"-1 1/2" 007M2  and LF007M2 repair kit- first check. Kit includes seat, seat o-ring, disc assembly, spring, check cage and cover o-ring. 

Watts 1 1/4"-1 1/2" 007M2 repair kit- second check. Kit includes seat, seat o-ring, disc assembly, spring, check cage and cover o-ring. Ordering # 0887720

Watts 1 1/4" and 1 1/2" 007M2 and LF007M2 repair kit- rubber total. Kit includes cover o-ring, two disc assemblies and two seat o-rings. 

Watts 1 1/4" and 1 1/2" 007M2 and LF007M2 repair kit- cover kit. Kit includes cover and cover o-ring. Ordering # 0887722

Watts 3/4" 007M2 repair kit- total kit. Kit includes first check repair kit, second check repair kit, retainer. 

Watts 3/4" 007M2 repair kit- rubber total. Kit includes cover o-ring, two disc assemblies and two seat o-rings. Ordering # 0887043

Watts 1 1/4"- 1 1/2" 007M2 and LF007M2 repair kit- total kit. Kit includes first check repair kit, second check repair kit, retainer.