Deka Group 31 Dual Back-to-Back Battery Mount. The only Deka 8A31DT battery box guaranteed to out perform the competition! Sleek no-nonsense design gives you the peace of mind knowing your battery is secure Inch the most demanding environments. This mount fits four battery models including the 8A31DT and 8A31DTM Deka models as well as the West Marine 1231422 SeaVolt and 327025 SeaGel batteries. Other Deka group 31 batteries may apply as well. Don't mess around with a mount that doesn't come close to the quality, and durability of our Deka Battery mount! Available Inch many other configurations, it's no wonder we have never had an unsatisfied customer. Order today and enjoy years of rock solid performance For your investment. Features / Options include: