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The Polylok 20" heavy duty riser kit comes complete with everything needed to install a septic tank riser system in your application. This package gives you approximately 8" in height. Additional 20" Polylok risers can be purchased and stacked on to this kit.
Includes:
Optional 20"x12", 20"x6", 20"x3", and 20"x2" risers are available for this kit.
Optional 20" riser gaskets (PN: 3009-HR) are available for this kit.