This Cool Cell has a large capacity and is economically priced. Its’ intended for hot climates without harsh winters. It’s not freeze proof and should not be used if total freeze up is possible. The useable interior space is 46” w x 23” d x 13” h. and will hold four 8G8D size batteries. It’s fitted with a 2” Convective Hydrogen vent and has a 2” FPT conduit fitting on both ends.