Selkirk 4 in. Aluminum/Steel Wall Support/Band Assembly (model 4RV-WB) is the dependable through-wall anchor your 4-inch Type B chimney needs. Built from a rugged aluminum/steel blend, this wall band provides solid support where the vent meets the wall, helping maintain alignment, reduce movement, and create a durable, weather-ready connection for both indoor and outdoor installations.
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Diameter: 4 inches to fit standard Type B vent runs.
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Material: Aluminum/steel construction delivers strength, flexibility, and corrosion resistance for long-lasting performance in varied environments.
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Safety compliance: UL Listed, giving you confidence in meeting code requirements for venting installations.
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Finish: Gray color that blends with most venting systems and wall surfaces.
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Versatility: Suitable for both indoor and outdoor use, so you can install it virtually anywhere your 4" Type B vent travels through a wall.
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Package details: Includes one wall support/band assembly per package (model 4RV-WB).
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Application: Designed to support through-wall connections for Type B vent systems, enhancing stability of the vent run at the wall penetration.
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Temperature rating: Maximum Continuous Temperature: 100.
Ideal use cases
- Installing or upgrading a 4" Type B vent through an exterior or interior wall for gas-fired appliances, fireplaces, or direct-vent systems.
- Remodels where a secure, code-recognized wall pass-through is needed to maintain proper vent alignment and prevent strain on joints.
- Replacement part in the Selkirk 4" venting lineup to restore secure wall penetration and support after wear or renovations.
Why choose this wall support/band assembly
What sets the Selkirk 4RV-WB apart is the combination of durable materials, code-listed safety, and practical, installer-friendly design. The aluminum/steel construction withstands the stresses of daily operation and the elements, while the UL listing confirms its suitability for Type B vent systems. The gray finish helps the wall pass-through blend with common vents and walls, delivering a clean, professional look in both new construction and renovations.
Practical tips for use:
- Match the wall band to your existing 4" Type B vent sections and ensure the wall penetration is properly sealed according to local codes and Selkirk installation instructions.
- Install with appropriate fasteners and weatherproofing methods to maintain a durable through-wall seal against moisture and air leaks.
- Verify clearances around the vent path and through-wall area to prevent heat transfer or ignition concerns in accordance with the appliance’s specifications.
- Keep the model number (4RV-WB) handy for references when ordering replacements or compatible components in the Selkirk 4" system.
Designed for professionals and DIY enthusiasts alike, this wall support/band assembly gives you a reliable, code-compliant anchor point that preserves vent alignment, protects against movement, and supports long-lasting performance for your 4-inch Type B chimney system.
