Professional Two Stage VTS 250, Oxygen, 540, 9/16-18 UNF (M), 40 PSIG

Delrin insert bushing for durability, easier adjusting. Die-forged brass spring housing cap provides greater strength and durability. Stainless steel diaphragm gives accurate long lasting service. Stem-type seat mechanism inlet pressure aids in sealing. Stainless ball in key for easy adjustment..