Features:Polished finish Fits Optima 75/25 red top batteries Fits Optima D75/25 yellow top batteries CNC machined Base drain holes to prevent moisture build-up Recessed bottom tray locates battery firmly in place Stainless steel hold down mounting hardware This battery mount is designed to fit 75/25 optima red top batteries and D75/25 Optima yellow top batteries. This box measures 6 3/4" x 9 1/16" and the battery fits down in the base over 1/4", which fits the base of the 75/25 red top and the D75/25 yellow top perfectly. The three mounting stands are 6 5/8" tall. Although this bracket was designed and manufactured for the batteries listed, it will fit many others, including the group 75 and group 96 batteries without the filling caps on the top. It is always a good idea to measure the base and the height of your battery before ordering. This battery mount is designed and manufactured to fit batteries with bases of 6 3/4" x 9 1/16" that are 7" in height, without any caps on the top. The Optima model number for this red top battery is 75/25. If you are replacing an optima battery you already have, this model is the same as batteries marked 8022-091, 9022-091, 27980, 75-25, 75/35-925, RED75/35, 12853, SC75U, RED35/75, or N9975/25RED. The Optima model number for this yellow top battery is D75/25. If you are replacing an, Optima battery you already have, this model is the same as batteries marked 8042-218, 9042-218, D75-25, D75/35, YEL75/25, SC75DU, or N9975/25YEL.