Flo-Well Manufactured Dry Well Part No. Description Color Pkg. Qty. Wt. Ea. (lbs.) Product Class Specifications FWAS24 24" diam. x 28.75"H Flo-Well® Storm water leaching system Black 1 25.15 10FW NDS #FWAS24 structural foam polyolefin round drywell system with UV inhibitors. 24" dia., 28.75" high, 49 gal. with 18- 1.5" Knockout leaching ports and 3- 4.5" knockout inlet/outlet ports per panel. Color Pkg. Qty. Wt. Ea. (lbs.) Product Class Specifications Black 2 8.