1/2 inch Feed Tube Fit: The automatic floating ball valve is an upgrade product, based on the design of new technology and solving many defects of the traditional straight sealing valve Good Sealing and Higher Pressure Resistance: With a smaller water level floating ball, the float filling valve can withstand higher liquid pressure (=1 MPA.) Easy Installation and Flexible Adjustment: This float check valve can be installed at any angle with the adjustable arm; Tank bracket with extended thread on the inlet side of the valve for mounting through the tank wall Reliable and durable: The mini tank float valve is made of special plastic, corrosion-resistant, more reliable than traditional metal products Wide applications: The float shut-off valve is widely used in reverse osmosis systems, ponds, fish tanks, etc. Also for watering chickens and other small livestock and pets