Gas boiler water heater double battery box — a durable, readytofit replacement battery compartment for gas water heaters and fireplaces. Key benefits Improved safety: Made from special ABS material with a smooth finish and no burrs, the case provides a reliable, longterm enclosure that protects internal components and reduces the risk of damage. Direct replacement and fit: White plastic case measuring 8 x 9 cm is designed for ordinary gas water heaters and fireplaces and serves as a dropin replacement for your existing battery compartment. Stable power: Builtin two 3VD batteries deliver consistent, reliable power. Compatible with any heater that requires a 2d battery, ensuring continued functionality of the pilot or control system. Costeffective maintenance: the battery case instead of the entire water heater to restore reliable operation and help maintain or extend the life of your appliance. Practical applications a cracked or corroded battery compartment on a home gas water heater to restore pilot ignition reliability. Service or a gas fireplace whose original battery box is damaged or missing, providing a quick field option for installers and technicians. Keep as a spare part in rental property maintenance kits or HVAC service vans to minimize downtime during routine maintenance or emergency repairs. Product details Material: Special ABS plastic Color: White Dimensions: 8 x 9 cm Power: Builtin two 3VD batteries Compatibility: Designed for ordinary gas water heaters and fireplaces; compatible with heaters that require a 2d battery Design: Smooth appearance, sturdy structure that retains original color and shape Installation and care Simple to install as a direct replacement for existing battery compartments. Durable ABS construction resists wear and preserves appearance over time. only the battery box to restore reliable operation and avoid the cost of replacing the entire appliance.