Middle Atlantic VBK-SD22 VBK Series Magnetized Vent Blocker Kit for DWR SR, 22" Deep, Black

Keep rack-mounted systems cool and reliable with the Middle Atlantic by Legrand VBK-SD22 vent blocker kit. Designed as a purpose-built vent blocker kit for DWR/SR enclosures, the magnetized panels prevent hot-air recirculation and force heated air out through top-mounted exhaust fans—improving cooling for sensitive security, surveillance, monitoring and IT equipment. The kit is engineered for 22" deep racks and comes in a discreet black finish to match standard cabinets. Installation is fast and tool-free: magnetized pieces are sized for immediate use without trimming and include parts to block upper front, side and rear vents as needed. By stopping cooling “short circuits,” the VBK-SD22 reduces rack hotspots, lowers fan run-time, and helps extend the life of servers, switches, and recording devices. Ideal for AV integrators, IT managers, and security technicians managing dense networks and surveillance deployments, this vent blocker kit simplifies thermal best practices and boosts system uptime. Add the VBK-SD22 to your rack specification to streamline airflow management and protect critical infrastructure—order today to optimize your cooling strategy.

• Prevents hot-air recirculation so top-mounted exhaust fans expel heat efficiently, reducing equipment temperatures and downtime
• Magnetized panels install quickly on 22" deep DWR/SR enclosures with no trimming or tools required, saving install time
• Sized for immediate use with included pieces to block top and side vents, supporting consistent airflow management across racks
• Low-profile black finish blends with rack systems for a professional appearance in security, surveillance, and AV installations
• Helps improve cooling effectiveness for networking, monitoring and IT equipment, increasing component lifespan and system reliability