This item is highlighted as #29 on the product illustration in the middle.

View a picture of the 1 air operated diaphragm series pump this item goes with by clicking the thumbnail on the left.

This ball valve is part # 44-212-60, is made from santoprene elastomer, and goes with Price 1 AOD series pumps that includes models 1 AOD-A, 1 AOD-C, and 1 AOD-S.