Provide KEES Model KC (or KD) (or KE) exhaust only backshelf (or backshelf/counter) (or broiler/oven or pizza) type hood(s) constructed on 18 gauge type 304 (type 430) stainless steel with #3 polish of sizes as indicated. All exterior seams shall be continuously welded, liquid tight, and ground and polished to match the original finish of the material. The filter housing and full length pitched grease trough shall be of 18 gauge type 304 (type 430) #3 polish stainless steel with removable stainless steel grease container. Filters shall be U.L. Classified, 2" thick baffle type constructed of aluminum (or stainless steel) and shall be of full hood length and of height to assure optimal performance as specified by the filter manufacturer. Hood(s) shall be fabricated in accordance with National Fire Protection Association (NFPA) Bulletin #96, and shall be National Sanitation Foundation (NSF) Listed and bear the NSF seal. For more details, refer to KEES catalog KCDE.