Attwood T-563 Battery Box Vent

Attwood T-563 Battery Box Vent is the official vent accessory for Attwood Power Guard 27 Series battery boxes, designed to vent gases from enclosed battery compartments in RVs, campers, boats, and trailers. This venting component accompanies 27-series boxes that accommodate Group 27 batteries (27, 27F, 27M), helping to channel hydrogen gas safely away from living spaces while the battery box remains sealed and secured. Labeled with part number T-563 for precise identification within the Attwood Power Guard line, the vent integrates with standard installations to provide reliable ventilation for marine and recreational vehicle applications. Suitable for use in under-bench compartments on boats or exterior battery enclosures on travel trailers, the T-563 helps maintain a safe, vented enclosure as part of a compliant battery-storage solution. When paired with the Power Guard 27 Series, this vent forms a complete, purpose-built ventilation pathway that supports the typical safety practices for storing higher-capacity lead-acid and similar batteries on boats and RVs.