50mm-160mm PVC Drainage Pipe End Caps Breathable Cap Net Vent Terminal Fittings

Measure the outer diameter (OD) of your pipe — not the inner bore. Common residential soil pipes are 110mm OD; smaller waste pipes are typically 50mm or 75mm; larger underground drainage mains are often 160mm. Match that measurement to the size option above. If you are unsure, a digital caliper or pipe gauge will give you an accurate reading in seconds.

No adhesive is required for most applications. The push-fit socket is molded to create a firm friction fit on standard-tolerance PVC pipe ends. For permanent installations where vibration or thermal expansion is a concern, a small bead of PVC solvent cement around the socket rim can be applied, but this makes removal more difficult.

Yes. The rigid PVC material resists UV degradation and handles typical outdoor temperature ranges from approximately −10°C to +60°C (14°F to 140°F). It is suitable for above-ground vent pipe terminations exposed to rain, sun, and frost. In climates with extreme freeze-thaw cycles, inspect the cap annually to confirm the mesh screen remains clear of ice blockage.

The cap is a breathable vent terminal, not an airtight seal. Its purpose is to allow passive airflow (which prevents siphonage and pressure buildup in the drainage stack) while blocking insects, debris, and rodents. Sewer gas is managed by the ventilation airflow itself — the open vent stack allows gases to disperse safely above roof level rather than accumulating. If you need a fully sealed, non-vented cap, select a solid end cap instead.

These caps are designed for standard PVC and uPVC drainage pipe outer diameters. ABS pipe of the same nominal size typically shares the same OD, so compatibility is likely — however, minor manufacturing tolerances can vary. Clay pipe ODs differ significantly from plastic pipe standards and are generally not compatible. Contact us to confirm before ordering for non-PVC applications.

Yes, with a caveat. The breathable net vent design is intended for terminal (open-air) applications. If you need to seal an unused branch inlet inside a drainage run where airflow is not desired, a solid push-fit stop end or blanking cap would be more appropriate. For above-ground unused inlets where some ventilation is acceptable, this cap works well as a temporary or semi-permanent solution.

The cap can be removed by hand or with light leverage using a flat tool. Rinse the mesh under running water and use a soft brush (an old toothbrush works well) to clear debris, spider webs, or mineral deposits. For stubborn blockages, soak in a diluted white vinegar solution for 15–30 minutes, then rinse thoroughly before refitting.