Polylok 20 Inch Septic Tank Riser Kit - 4 Inch Tall Heavy Duty Plastic Cover for Underground Sewage Systems - Perfect for Home Septic Maintenance & Easy Access

Polylok Complete 20" Riser Kit (4" Tall) The Polylok 20" riser kit comes complete with everything needed to install a septic tank riser system in your application. This package gives you approximately 4" in height. Additional 20" Polylok risers can be purchased and stacked on to this kit. The Polylok Complete 20" Riser Kit consists of the following components: Polylok 20" x 2" Riser (PN: 3009-GR2) Polylok 20" Riser Cover (PN: 3009-RC) Polylok 20"/24" Riser Adapter Ring (PN: 3009-AR) Polylok Adapter Ring Installation Anchor Kit (PN: 3009-KIT-NG) Optional foam gasket sold separately Installation Instructions: Locate adapter ring over access opening on top of tankUsing a 1/4" masonry bit, drill 8 holes 1-1/4" deep on top of tankClean under surface of adapter ring (apply optional foam gasket or butyl)Position adapter ring over opening, using 1/4" anchors, tap anchors into drilled holes and tighten with wrenchPosition appropriate riser and or cover and screw onto the adapter ring to provide a watertight connection NOTE: These items should be installed by a professional septic tank installer or pumper. These are not intended to be installed by a homeowner.