Allows for alteration or replacement of drain waste or vent fittings. Each fitting supplied with series 300 stainless steel clamps. Fits all common household pipes including cast iron, plastic, copper and lead. Exceptionally flexible and extra long. Idealfor replacement for fittings cut out at the joint during alteration or repair. NOTE: Not recommended for underground connections. For drain waste and vent use only. In-wall pipe should be supported. Do not use in pressure applications. Tee and elbows adapt to other pipe sizes with Qwik Bushings.