Brass Check Valve 1/2" Male to 1/2" Female, Hose Backflow Preventer 2pcs, One Way No Turn Back for Tank Water Heater Toilet — Open-Box, 33% Off

【Function of Check Valve】：This brass one-way check valve allows liquid or gas to flow in one direction only while preventing backflow, and can be installed vertically or horizontally.

【1/2 inch NPT Check Valve】: Brass 1/2 inch NPT male to 1/2 inch NPT female check valves are designed to connect two pipes or fittings with 1/2 NPT threads up to 14 bar (200 psi) and operating temperatures from -40 to +250 °F (-40 to +121 °C).

【High quality backflow preventer】: the product is made of brass with ABS plastic core, corrosion-resistant and durable, reliable sealing, small size, low noise, easy to install, good high temperature ductility and low magnetic permeability.

【Widely used】: Suitable for water heaters, water tanks and water towers, toilets, garden pipes, RVs, also can be used for all kinds of landscape sprinklers, swimming pools, water parks, aquariums and so on.

【Warm Tips】:1/2" female to 1/2" male threads for one-way flow, please confirm the direction before purchase and installation. If the installation is reversed, liquid or gas will not come out.

Are you experiencing these family troubles in your daily life? The water in the toilet tank flows back to the water inlet pipe; The backflow of hot water in the water heater can cause damage to the water heater; The backflow of solar hot water leads to waste of hot water energy; The backflow of water from the water meter increases your water bill. Toilet check valve can solve these problems for you. Specification Material: Brass Color: Gold Size: 35*20mm/1.38*0.79 inches Working Pressure: 200PSI Package Details: 2 × Toilet check valve 2 × Rubber gasket Features: Prevent the medium from no backflow in the pipeline, it can be used to transport gases and liquids under constant pressure. You can use vertical or horizontal. Easy installation and removal. When installing, pay attention to the direction of liquid flow(the arrow mark on the product). Water is allowed to flow in only one direction. Notice: 1. For better sealing, it is recommended to use Teflon tape on the fittings. 2. Please select your own suitable size before purchasing.