10Pcs 45mm/50mm Durable Pressure Diaphragm For Water Heater Gas Accessories Water Connection Heater Parts Black Features: fresh and positive Material: Nitrile rubber, Features: dependable sealing and growing old resistance. Pressure diaphragm of 45mm/50mm gasoline water heater. A nice helper for maintenance of water heaters, fuel valves, etc. Mainly used to extend water pressure. When the water movie ruptures, it will leak. When the water quantity is large, the water strain at the water film will decrease, and there's almost no water leakage. When the quantity of water is small, the water strain on the water film will increase, but the leakage charge is probably faster. The Package Includes: 10 items of 45mm/50mm size. Specifications: Material: Plastic Weight: 25g/35g Size: 45mm/50mm Color: Black Package Includes: 1x Pressure Diaphragm Note: 1 allow 1-2cm errors thanks to guide measurement, just ensure you do not mind earlier than you order. 2 to the adaptation between diverse monitors, the image might not reflect the particular coloration of the item.