Special note: The interface size of this product is G3/8 inches (16mm in diameter), not G1/2 inches. Please make sure the interface is compatible before purchasing. Two installation methods: Compared with traditional water tank inlet valves, we can support bottom or side inlet valves, suitable for integrated or two-piece toilets. Adjustable Height: Equipped with the main body latch, can adjust the water lavel, compatible with most dual flush toilet systems. Effective Clean: The inlet adopts the filter net to effectively filter the impurities in the water. Premium Material: Made of premium ABS material, rugged and durable, hexagon fastening nut made of brass material, the life has increased to 100,000 times.