3/4" Tri Clover Compatible Diaphragm Valve. Made from 316SS.  This 3/4" fitting has a flange that measures .984" across and has a 5/8" bore.

Specifications

Material: 316 Stainless Steel

Seat Material: PTFE & EPDM

Flange Outside Diameter: 0.984"

Bore: 0.625"

Overall Length: 4.625"

Height: 4.5"