10Pcs 45mm/50mm Durable Pressure Diaphragm For Water Heater Gas Accessories Water Connection Heater Parts Black Features: fresh and fantastic Material: Nitrile rubber, Features: dependable sealing and growing older resistance Pressure diaphragm of 45mm/50mm fuel water heater A good helper for maintenance of water heaters, gas valves, etc Mainly used to increase water pressure When the water film ruptures, it's going to leak When the water volume is large, the water stress on the water film will decrease, and there may be almost no water leakage When the amount of water is small, the water strain at the water film will increase, however the leakage fee may be quicker The Package Includes: 10 pieces of 45mm/50mm length Specifications: Material: Plastic Weight: 25g/35g Size: 45mm/50mm Color: Black Package Includes: 1x Pressure Diaphragm Note: 1 allow 1-2cm mistakes thanks to manual measurement, just remember to don't mind earlier than you order 2 to the adaptation between varied monitors, the picture may not reflect the actual colour of the object