50mm-160mm PVC Drainage Pipe Eccentric Reducer Adapter Connector Fittings White

A concentric reducer centers both pipe ends on the same axis, creating a step on both sides. An eccentric reducer offsets the centerlines so that one side (typically the bottom/invert) remains flat and flush. This is critical for horizontal drain runs because it prevents a low pocket where water and solids can pool, maintaining consistent self-draining flow.

Measure the outer diameter (OD) of both pipes you need to connect — the larger pipe and the smaller pipe. Match those measurements to the model size listed (e.g., 110×75mm means the larger socket fits 110mm OD pipe and the smaller socket fits 75mm OD pipe). If you are unsure, check the pipe markings or use a caliper to measure the OD directly.

Yes. Rigid PVC is widely used for underground drainage applications. Ensure the trench is properly bedded with compacted granular material and that the fitting is fully solvent-welded before backfilling. Check local building codes for any depth or bedding requirements specific to your region.

No. These fittings are designed for gravity drainage and waste systems only — not for pressurized water supply lines. Continuous operating temperature should not exceed approximately 60°C (140°F). For hot water supply connections, use fittings rated for pressure and temperature accordingly.

Cut both pipe ends square and deburr. Dry-fit to confirm alignment and orientation (flat side of the eccentric offset facing down for horizontal runs). Apply PVC solvent cement primer to both the pipe OD and the fitting socket ID, then apply solvent cement and push firmly together with a slight twist. Hold for 30 seconds and allow to cure per the cement manufacturer's instructions before running water.

Rigid PVC is inherently corrosion-resistant and unaffected by most household drain chemicals, soaps, and waste water. It will not rust or rot. For outdoor or exposed installations, UV exposure over many years can cause surface chalking, but structural integrity is typically maintained. Painting with a UV-blocking paint can extend the appearance life if aesthetics matter.

These fittings are designed for PVC pipe. Connecting PVC fittings to ABS pipe requires a transition cement or a mechanical coupling — standard PVC solvent cement does not bond reliably to ABS. Check local plumbing codes, as some jurisdictions restrict PVC-to-ABS transitions in certain applications.