The Fernco Storm Drain FSD-3017-20BKIT the impeccable solution to all of your drainage needs. This 20 '' valve, & meter box catch basin is bang-up for giant applications specified as golf courses but is also a suited size for the home. The basin 2 '', 3 '' & 4 '' pipe. The 20 '' Drain Box will also Fernco Storm Drain 20 '' Risers so you can easily bring the Drain Box to grade. It is the most various Drain gettable on the market today ! . : Use as Rain Drain, D-Box, or Drop Box ; allows for all configurations Use as a rain drain for gutters, driveways & sub surface drainage Use as a distribution box or drop box for onsite infected systems Use with the riser to bring cover or grate to grade as needed Accepts 2 '', 3 '', 4 '' Sch., S&D and furrowed pipe Four stabilizing feet with our 12 '' D-Box Installation Instructions : Carefully cut out required opening in the box with a knife. seal from INSIDE the box. on the nut from OUTSIDE the box. to provide a seaworthy seal. the change by reversal size tear out on the seal. OUT - DO NOT CUT OUT. the pipe into the seal. the stabilizing feet into the sockets at the base of the box. -LRB- '' solitary -RRB- .