Magic Plastics 0821-15C 1.5" s 0.5B Check Valve Smart Check All wheels are adjustable to

All wheels are adjustable to increase or decrease the vacuum velocity

Smith 05-632 White Plastic Washer with Cap

Normal: Dilute with at least nine parts of water

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Magic Plastics 0821-15C 1.5" s 0.5B Check Valve Smart Check All wheels are adjustable toThe "Smart" Check provides you with reliable back flow prevention without the inline restriction of a conventional check valve. With the use of high powered magnets, the "Smart" Check valve remains in the closed position to 2 PSI, opening fully when 2 lb. line pressure is exceeded. The "Smart" Check has a Spring Loaded gate mechanism allowing the valve to be installed in any orientation. The valve is also available in a non magnetic, 1 2 lb. Spring