For use with repair elbows and tees. Used for repair or alteration of drain, waster, or vent pipe and fittings. Fits cast-iron, steel, plastic, lead, and copper pipe. Especially suited for in-wall or other limited space connections. Extra length allows easy replacement of elbows or tees cut out at joint. The model No. PCXPB215 will fit inside model No. PCXPB32 in event a 3" x 1-1/2" reduction is required.