Lowell MVB Series Magnetic Vent Blockers For LWR Rack | 19/22 in.D

The Lowell MVB Series magnetic vent blockers are designed for AV integrators and systems engineers who need precise airflow control inside enclosed equipment racks. By covering unused vent openings on the top front, sides, and rear door interior, these panels force conditioned air through intended pathways rather than allowing recirculation or bypass, which directly improves cooling efficiency for heat-sensitive amplifiers, processors, and network equipment.

Each kit is sized to match specific vent locations on compatible Lowell rack enclosures, including the LGR, LER, LWBR, and LWR Series. The magnetic backing allows panels to be repositioned or removed without tools, making them practical for ongoing rack reconfiguration in installed AV environments such as control rooms, equipment closets, and broadcast facilities. Some field trimming may be required depending on vent geometry. These blockers are intended to work in conjunction with a fan panel, not as a standalone passive solution, making them a targeted component in a structured thermal management strategy rather than a general-purpose accessory.