UGDS Pipes are generally made as per IS:15328. The said IS prescribe usage of Rubber Rings as per IS:5382-1985.

Material : EPDM Polymer & Natural Polymer

110 mm UGDS Rubber Ring = L-1062
160 mm UGDS Rubber Ring = L-960
200 mm UGDS Rubber Ring = L-1050
250 mm UGDS Rubber Ring = L-1051
315 mm UGDS Rubber Ring = L-1052