Standard locking cabinet measures 16 1/2" x 22"L x 19"H - with no cooling fan or electric installed. Will hold all compressors up to RV100 or multiple smaller units with stainless steel lock to protect against vandalism. 14 gauge galvanized steel with powder coat paint finish. Includes a compressor mounting base to keep compressor up off floor. Tapered lid - makes front wall shorter allowing easier access to compressor. Has six 1 1/4"knockouts for airlines and one knockout for incoming power. Note: Units with fans are recommended on any compressors operating in hot climates and on 3/4 HP and larger in all climates. Electrical box has 1/2"conduit plumbed through floor for easy wiring.