NOCO BT31S Group 31 Heavy-Duty Battery Tray for Marine, RV, Camper and Trailer B
Item model number BT31S. Manufacturer part number BT31S. Model BT31S. The BT31S Battery Tray is one of the most durable and rugged battery trays for marine, RV, camper, and trailer batteries. Designed for use with a single group 31 battery.