10Pcs 45mm/50mm Durable Pressure Diaphragm For Water Heater Gas Accessories Water Connection Heater Parts Black Features: brand new and pleasant Material: Nitrile rubber, Features: reliable sealing and ageing resistance. Pressure diaphragm of 45mm/50mm fuel water heater. A nice helper for upkeep of water heaters, gasoline valves, etc. Mainly used to extend water pressure. When the water film ruptures, it's going to leak. When the water quantity is large, the water pressure at the water movie will decrease, and there is almost no water leakage. When the quantity of water is small, the water strain at the water movie will increase, but the leakage charge may be 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 enable 1-2cm mistakes thanks to handbook measurement, just be sure you don't intellect earlier than you order. 2 to the variation between various monitors, the picture won't mirror the actual coloration of the item.