50mm-160mm PVC Pipe Eccentric Reducing Bushing Fittings Connector Joints White

A concentric reducer centers both pipe bores on the same axis, creating a symmetrical taper. An eccentric reducer offsets the bore so one flat side of both pipes aligns flush. In horizontal drain lines, the eccentric design keeps the pipe bottom level, preventing air pockets and ensuring complete gravity drainage — making it the correct choice for DWV applications.

Match the larger socket to your existing (larger) pipe's outer diameter and the smaller socket to the branch or downstream pipe. For example, if you are stepping down from a 110mm stack to a 50mm branch, select the 110×50mm bushing. Measure your pipe OD before ordering — nominal pipe sizes and actual ODs can differ by a few millimeters depending on the standard used in your region.

Yes. Rigid PVC is the industry-standard material for residential DWV systems. It handles typical household drain temperatures (up to approximately 60°C / 140°F for short durations), resists common household chemicals, and does not corrode or degrade in buried or concealed installations. It is not rated for continuous hot-water pressure lines — for those applications, CPVC or copper is recommended.

PVC is inherently corrosion-resistant and non-reactive with most household drain chemicals, including common drain cleaners at normal dilutions. It will not rust, pit, or scale. For highly aggressive chemical environments (concentrated acids or solvents), consult a chemical compatibility chart before use.

These bushings are molded to standard PVC DWV dimensional tolerances and are designed to fit standard DWV pipe from major manufacturers. If you are working with Schedule 40 pressure pipe (which shares the same OD as DWV pipe), the socket fit will be compatible. Always dry-fit before cementing to confirm the joint is snug and square.

Cut the pipe square and deburr the end. Dry-fit the bushing to confirm alignment and mark the orientation (flat side down for horizontal runs). Apply PVC primer to both the pipe end and the bushing socket, then apply PVC cement to both surfaces. Insert the pipe with a slight twist and hold for 30 seconds. Allow the joint to cure per the cement manufacturer's instructions before pressurizing or flowing water.

For a single repair or one-off connection, the 1-piece option is sufficient. If you are roughing in multiple fixtures on the same drain line — such as a bathroom group with toilet, sink, and shower — the 2 or 5-piece pack offers a better per-unit value and ensures you have spares on hand if a fitting needs to be re-cut.