L x 23 in. W x 18 in. H Small/Medium Plastic Cover in Gray. Designed for concealing a number of utility devices found within the residential and commercial landscape including septic, well and irrigation devices. Dekorra rock enclosures creates the perfect addition to most residential and commercial landscapes by allowing the property owner to blend in unsightly utility devices. All rock enclosures are available in four natural tones and a finish that resembles real stone.