Grade Rings and Inserts
Submit
New Products

Grade Rings and Grade Ring Inserts

Home Products breadcrumb separator Gravity & Pump Products

Grade Rings and Grade Ring Inserts (GR, GRI)

Orenco 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 Grade Ring Insert and a section of ribbed PVC riser pipe. Grade Ring Inserts can also be purchased separately.

  • PVC ribbed riser material
  • PVC construction on inserts for 12in and 18in nominal diameter (300mm and 450mm DN) riser pipe
  • ABS construction on inserts for 21in, 24in, and 30in nominal diameter (525mm, 600mm, and 750mm DN) riser pipe