May 07, 2012


The new 421 Top Bolt is a two-bolt coupling that is lightweight and easy to install. There is one bolt on each end to tighten. It also features a removable, replaceable, bi-directional inner gasket and can stab fit on pipe ends. It is available in 4-, 6- and 8-in. sizes.

Smith-Blair Inc


PO Box 5337

Texarkana, TX 75505

United States

Phone: 870-773-5127

Fax: 870-773-5212

[email protected]