10Pcs 45mm/50mm Durable Pressure Diaphragm For Water Heater Gas Accessories Water Connection Heater Parts Black Features: fresh and pleasant Material: Nitrile rubber, Features: reliable sealing and growing old resistance. Pressure diaphragm of 45mm/50mm gasoline water heater. A nice helper for upkeep of water heaters, fuel valves, etc. Mainly used to extend water pressure. When the water movie ruptures, it's going to leak. When the water quantity is large, the water pressure at the water movie will decrease, and there could also be almost no water leakage. When the quantity of water is small, the water pressure on the water film will increase, but the leakage fee can 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 allow 1-2cm mistakes because of handbook measurement, just be sure you do not intellect before you order. 2 to the variation between different monitors, the picture may not replicate the particular coloration of the item.