These installation fittings MUST be used for proper installation insertion depth in order for all Signet meters to work properly. Mounts on SCH 80 PVC Pipe Select Part Above: Part No. Size: L, H, D, C* PV8S020 2.00 in. 4.00 5.0 2.375 1.43 PV8S025 2.50 in. 4.75 5.4 2.875 1.43 PV8S030 3.00 in 5.00 6.0 3.500 1.43 PV8S040 4.00 in 5.00 7.0 4.500 1.43 PV8S060 6.00 in. 5.00 10.00 6.625 2.25 PV8S080 8.00 in. 5.00 11.50 8.625 2.25 *C - Clearance Dimensions