Connect tubular traps to common household drainpipe. Drain and Trap Connectors are ideal for new installations, repairs, and alterations. Eliminating traditional methods, this product has a quick installation that will leave drain and trap systems leak-free. The PDTC-150 connects 1-1/4” or 1-1/2” tubular traps to all common 1-1/4” or 1-1/2” drain piping.