Polylok
Polylok 20"D x 2"H Riser | PL-RSR2002
Availability:
3 in stock
SKU: PL-RSR2002
Couldn't load pickup availability

| Part # | Description |
|---|---|
| PL-RSR2002 | 20"D x 2"H POLYLOK RISER |
20"D x 2"H POLYLOK RISER.
What it is
A septic tank riser extends the access opening of a buried tank or distribution box upward toward ground level.
This specific model:
- Diameter: 20 inches
- Height: 2 inches
- Material: High-density polyethylene (HDPE)
- Typical use: add small height increments when stacking risers on a septic tank access port.
Installers stack multiple rings (2", 6", 12", etc.) until the access lid sits at the desired height.
Why installers use it
Septic tanks are often buried 6-24 inches below grade. Without a riser, you must dig every time you pump or inspect the tank.
A riser system solves that problem.
Benefits:
- Brings the access lid to ground level for easy service.
- Creates a watertight and airtight access shaft.
- Lets technicians vacuum or water test the tank easily.
- Stacks with other Polylok components and lids.
Where it is used
Common locations in a septic system:
- septic tank manhole
- pump chamber
- distribution box
- inspection ports
The 20-inch diameter matches many modern septic tank openings and D-boxes.
Key design details
Typical features of Polylok risers:
-
HDPE construction
Strong, lightweight, corrosion resistant. -
Internal structural ribs
Improve strength and reduce frost adhesion in cold climates. -
UV protection
Allows lids and top sections to sit at grade. -
Modular stacking system
Accepts Polylok 20-inch lids and other riser heights.
Shop online at BARR Plastics.
Dimensions
Height: 2"
Length: 20"
Width: 20"
Weight: 3.0 lb
