1.
45 (spring check) C (clamp) 6 (T316L) 2.0 (size) V (seat material) Example: 45C - 6 2.0 - V
When requesting O-Ring changes add the following to the end of part number
Note: V=Viton E=EDPM S=Silicone B=Buna,
45-SCV (item number) - (valve size)
Example: 45-SCV1C-1.5 = Lower body clamp for 1.5 valvee