Check the listing for details. 1/2" BSP Brass Solar Water Heater Automatic Air Vent Pressure Release Valve. Condition: Brand New. Listed at 19.87 USD. 1/2" BSP Brass Solar Water Heater Automatic Air Vent Pressure Release Valve A handy brass valve releasing pressure from hot and cold water systems and low pressure vessels. Valve should be installed vertically at the highest point on the system and adjustest before use. Detail1x Pressure Release ValvePressure: 1.6MPaMaterial: BrassColour: Gold Approximate DimensionsLength: 61mmDiameter: 40mmThread: 1/2" BSP A few words to assist your buying experienceWelcome and thank you for visiting! My brief policies are below and are aimed at helping a clear and efficient buying process for you: PostageI will be happy to combine postage to help reduce costs for items purchased in my store. I will post all items from within Australia and following full payment I will typically post within 24 hours.You may choose Standard, Registered or Express Post when completing checkout. PaymentI accept PayPal and Bank Transfer for payment. Please let me know if you will be using bank transfer, so that I can look out for the funds.To assist a speedy delivery, I would appreciate prompt payment. However, if you are expecting to delay your payment please let me know, as communication is helpful. Delivery IssuesIf you any have issues with your delivery, please do not provide neutral or negative feedback – please contact me directly. By communicating, we’ll find an agreeable solution to any problem.