The Wilden Pump 15-1010-52 Diaphragm Set includes two rubber diaphragms specifically designed for double diaphragm pumps. With a pneumatic power source, this unit is perfect for various industrial and hydraulic applications. The Wilden brand is known for its high-quality pumps and accessories, making this diaphragm set a reliable choice for maintaining and repairing your existing pump systems. Wilden Pump15-1010-52 Diaphragm Wilden Pump P: 15-1010-52 Air Side Weight: 130 Gm