10Pcs 45mm/50mm Durable Pressure Diaphragm For Water Heater Gas Accessories Water Connection Heater Parts Black Features: fresh and beautiful Material: Nitrile rubber, Features: dependable sealing and getting older resistance. Pressure diaphragm of 45mm/50mm gas water heater. A good helper for upkeep of water heaters, gasoline valves, etc. Mainly used to extend water pressure. When the water film ruptures, it'll leak. When the water quantity is large, the water pressure on the water film will decrease, and there is almost no water leakage. When the amount of water is small, the water strain on the water movie will increase, however the leakage fee could also be faster. The Package Includes: 10 pieces of 45mm/50mm size. Specifications: Material: Plastic Weight: 25g/35g Size: 45mm/50mm Color: Black Package Includes: 1x Pressure Diaphragm Note: 1 enable 1-2cm errors thanks to instruction manual measurement, just make sure to don't mind earlier than you order. 2 to the adaptation between assorted monitors, the image will not replicate the particular shade of the item.