StormDrain FSD-3017-R 6-inch Riser for 12-inch Drain Box Catch Basin
The StormDrain FSD-3017-R 6-inch Catch Basin Riser for 12-inch Drain Box is used to bring FSD-3017-12BKIT to grade. This riser combines all the best features of concrete and plastic risers with its patented riser system and heavy duty polyethylene construction. It features structural ribs inside to prevent frost from adhering to the riser. These risers hold their shape and are water and air tight. They are stackable (up to 2 risers) and screw together for assembly. These high quality risers are made in the USA.