Specifications include, but are not limited to: 1. Pleated Filter such as Airex Filter Corp, Extended Area Pleat PM-SC or equivalent must have a U.L. Class 2 rating, moisture resistant media in a die cut beverage board enclosure and constructed with an efficient adhesive joining all components to ensure hold. The filter shall be constructed to include 12 pleats per foot and must have an average efficiency rating of MERV 8. Custom sizes must also have a beverage board frame, bonded with adhesive and clearly labeled with size, airflow and UL class 2. 2. High Efficiency Rigid Box Filter such as Airex Filter Corp, Air Pak 95, Extended Surface Rigid Air Filters or equivalent must have a U.L. Class 2 Rating, MERV 14 – 15/ 90-95% efficiency rating. Construction of filter uses 26-gauge steel frame, grid and headers, pleat stabilizers and constructed with an efficient adhesive joining all components to ensure hold. The filter media will be of a synthetic fiber type. 3. Carbon Filter such as Airex Filter Corp, Superflow VC manufactured by Flanders Filter Corp extended surface carbon filter which utilizes premium grade granular 60% activated carbon. Airex SFVC V-shaped frame holds up to 28 LBS of carbon media. This filter must have a U.L. Class 2 rating, moisture resistant media enclosure and constructed of metal and plastic with an efficient adhesive joining all components to ensure hold.