... are highly resilient to sunlight deterioration. 3/4" DN20H the water tank plastic float valve Valve Material – ABSBall Material - PEBall Diameter - ... 2.Less abrasion, corrosion-resistant, non-polluting.3.Quick water flow rate characteristics 4.Installed in any angles(High ... install, easy to adjust.It is made of plastic pollution on water quality.Its advantage is fast replenishment, traffic.Ideal ...