4" Tri Clamp to 4 Inch Hose Barbed Adapter SUS304 Sanitary Hose Barb Pipe Fit...

They are made of brass, stainless steel, galvanized steel, and other materials that resist corrosion, pressure, and wear. Hose fittings have various types of connections, including threaded, barbed, push-to-connect, dry disconnect, and others including those based on internationally-accepted specifications.

eBay