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- Orenco® Systems Grade Rings are used to provide a watertight extension to the height of an existing access riser or pump basin; they consist of an Orenco® Systems Grade Ring Insert and a section of ribbed PVC riser pipe. Grade Ring Inserts can also be purchased separately.
Orenco® Systems Grade Ring Insert, ABS, 29.25 in OD x 0.2 in THK
- PVC construction on inserts for 12 in and 18 in nominal Dia riser pipe
- ABS construction on inserts for 21, 24 and 30 in Dia nominal riser pipe
- 30 in Dia Kor-FLo™, Perma-Loc and Ultra-Rib™ riser pipe style
- Dimensions29.25 in OD x 0.2 in THKMaterialABSManufacturerOrenco SystemsManufacturer #GRI30