FSD-3009 6-in. Riser for Storm Drain 20-in. Drain Box Catch Basin
6" Riser for 20" StormDrain Drain Box / Catch Basin Part No. FSD-3009 Dimensions: 22.8"l x 22.8"w x 7.3"h This distribution box riser combines all the best features of concrete and plastic risers to create our patented riser system. Features: -Hold their shape -Stackable -Screw together assembly -Water and air tight Structural ribs inside prevent frost from adhering to the riser in the frost prone areas.
