
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- Watertight and airtight
- Allows septic tank to be easily vacuum or water tested
- Highest UV-Ray Protection on the market today
- Easy to bring septic access to grade
- Made of High Density Polyethylene which won't shatter like some Polypropylene risers
- Tear off riser ring if frost is a problem
- 24"x12" risers with wall flats will NOT accept Polylok 24" safety screens
- Diameter24 inHeight12 inMaterialPolyethyleneManufacturerPOLYLOK inc.Manufacturer #3008-R12-NG