1.size: 1/2''-4'' 2.material:pvc 3.standard: JIS,DIN, BS,ANSI 4.application:agricultural ... new material of PVC2)Size: 1/2'',3/4'',1'',1--1/2'',2'',3'',3--1/2'',4''3)Many color available you can choice, ... the regular operation, open and close quickly, lightweight.3)The fluid resistance is small.4)No vibration, and ... irrigation, industrialapplications, etc. to the drainage system. 1/2-4 plastic ball valve