... High sensitivity 2.Imported good stainless 3.Low water pressure,scientific water flow 4.Practical inexpensive 5.Sanitary Features of ... resin, APS, durable, available for 20 years Low water pressure, scientic water flow, applicable for chicken , hen, ducks in cage ... imported ones. None water seepage guarantee dry chicken manure. Sanitory, clean water seeled pipes prevent possible water-born disesses. ...