... , 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 ... .6)Quality: Heat, high temperature, extremely long usage life for at least 10 yearsApplication: applies to ... Swimming pool, wastewater treatment, aquaculture, agriculture, irrigation, industrialapplications, etc. to the drainage system. 1/2-4 ...