4" Tuf-Steel Tri-Clamp Gasket | Rubber Fab Gasket Size_ 4" and features a 1/2" MNPT

and features a 1/2" MNPT thread fitting on one side while the other is a 3/4" MNPT thread fitting

the ends of spools

This adapter features quick flanges for fast and convenient assembly with all NW/KF-25 and NW/KF-40 flanges

the NPT-Male adapter will create a lock-tight seal for more efficient use

The fellas can rock Fred the Cat too

4" Tuf-Steel Tri-Clamp Gasket | Rubber Fab Gasket Size_ 4" and features a 1/2" MNPTThe 4" RubberFab Tuf Steel Gasket is made of a blend of polytetrafluorethylene and 316L stainless steel for a gasket that provides leak proof performance in your vacuum system. The gasket is resistant to high temperatures, chemical corrosion, and exposure to steam. The RubberFab Tuf Steel Gasket works with flanges to help prevent a compromise in your frontline vacuum plumbing and process system. The gasket is non stick and features ultra low