SteelCrest BSL20X4SWHH Supply Vent Damper 20x4

Product Description

The SteelCrest BSL20X4SWHH is a slotted-face supply air vent with an integrated damper, designed for wall and ceiling installations in residential and light commercial HVAC systems. Constructed from solid steel with a white powder-coat finish, this grille fits a 20x4 inch duct opening and installs with an overall finished face size of 22x6 inches. The built-in damper allows the technician or installer to adjust airflow volume directly at the register without returning to the air handler. It is installed by HVAC technicians or skilled general contractors during new construction or retrofit projects.

This vent cover is suited for forced-air supply systems in residential homes, apartments, and light commercial spaces. The slotted-face design integrates with modern and transitional interior finishes, making it a practical choice during remodels where existing registers are being replaced. The 20x4 inch duct size is a common residential trunk-line branch size, and the 22x6 inch face overlaps standard rough openings cleanly for a finished appearance on drywall, plaster, and ceiling tile surfaces.

Key Features

• Solid steel construction with white powder-coat finish for long-term durability
• Fits 20x4 inch duct opening with a 22x6 inch finished face size
• Integrated damper for on-location airflow adjustment
• Slotted-face design compatible with modern and transitional interiors
• Suitable for wall and ceiling mount applications
• Direct-replacement fit simplifies new construction and remodel installs

Compatibility

Designed as a direct-replacement supply vent for residential and light commercial forced-air duct systems with a 20x4 inch duct opening.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified contractors. Shut down the air handling unit and confirm the system is not pressurized before removing the existing grille or cutting the duct opening. Secure the grille to the wall or ceiling surface using appropriate fasteners for the substrate material. Verify the damper blade moves freely and is set to the desired position before returning the system to service.

Technical Specifications

• Duct Opening Size: 20x4 inches
• Finished Face Size: 22x6 inches
• Material: Solid Steel
• Finish: White Powder Coat
• Mount Type: Wall or Ceiling
• Damper: Included
• Package Weight: 8 pounds
• Package Dimensions: 22x8x4 inches

Standard Information

• Brand: SteelCrest
• Manufacturer Part Number: BSL20X4SWHH