Polished 316L Stainless Steel.
Two -12 AN flare fittings and a 3/8" NPT bypass port.
Fits most plumbing applications.
Designed to fit Big Block and Small Block Chevrolet Engines.
Bypass hole can also be used for temperature sender.
Length 4", Width 2-3/4", Height 2-1/2".
Includes bolts and gasket.