TVI are manufacturers and sole distributors of their plastic hand operated valves. Types include butterfly, safety block ball, strong union ball, diaphragm, compact ball, and other types of manually operated plastic valves.

Pro Dyne Corporation are distributors of Nigo hand operated ball valves in forged brass or stainless steel. Each are available in 1, 2 and 3-piece designs. Manually operated forged brass valves feature 600 psi WOG, while stainless steel valves offers 1000 psi WOG. All are UL/FM/AGA/CGA/CSA approved.

Circle Valve Technologies, Inc. is a distributor of valve products from a variety of manufacturers. Available products include the 9500 series hand operated shutoff valve featuring a compact size, leak-proof design, handle stop, positive position indication and connection sizes of 1/8" and 1/4".