1.Round socket end pvc ball valve 2.1/2-6",oneside handle 3.ANIS,JIS,BS, ... the valve body, not the ball and seat, minimizing the chance of uneven wear and leakage.Plastic/metal sprinklers, drip irrigation system, micro irrigation ... 70 countries. We have more than 10 years experience in irrigation field.America:USA, Canada, Ecuador, Peru, Chile, Agentina, Brazil, Mexico ...