Rubber conduit plug
Conduits are systems of wiring that are common to every house; after all, they are what runs our home as it is today. Conduits are metal or plastic pipes that have wires inside them. These pipes go on to create a network that forms the foundation of the wiring inside your home. Electrical conduits are very essential to the wiring process, and you can still see them in your attic or basement if you want.
Installing conduits in homes is the fundamental job of every electrician there is. They route the electrical conduits through different and various ways to provide power to the house. Often these conduits are exposed to air at incomplete lines when the electricians are setting up the wiring in your home. While this would’ve been fine if we were living in a world where everything is perfect and without accidents, in reality, we don’t.
A single touch with a bit of water and these conduits can lead to short circuits with their exposed wires, ruining most of the electrical wiring and potentially setting the house on fire. This is a nightmare for any electrician, which is why all electricians necessarily carry a rubber conduit plug when working with electrical conduits. A rubber conduit plug seals off the incomplete end of an electrical conduit to ensure no exposed wires come in contact with water or anything else they can short circuit with.
A rubber conduit plug is recommended by all electricians collectively because they are just so helpful when working on wiring. They can seal off a potential hazard by using a single rubber conduit plug and ensure future safety. Even if you aren’t an electrician and spot an exposed electrical conduit end in your basement or attic, you should consider buying a rubber conduit plug to seal it off yourself so that your house stays safe.
Stopper & Plug Size Catalog
Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
RST T-Shaped Plugs
Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

RSA Tapered Corks
Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.

RSB Undercut Plugs
Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.

RSD T-Shaped Stoppers
Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.
Discuss Your RequirementsProduct specifications
- Product form
- Internal pipe-end closure
- Application focus
- Pipe or conduit ends. Size the part against the selected assembly.
- Dimensions to confirm
- Pipe bore, insertion length, plug body and retention hardware. Match these to pipe or conduit ends.
- Contact conditions
- Air and water: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Closure retention
- Define the means of retention and any pressure differential before fitting the closure.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
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