Un-Used Wilden Air Operated Double Diaphragm Pump. Model: M2. Capacity at 80 psig supplied pressure: 18 gpm @140 tdh. Temperature limits: 32 °F to 175 °F. Maximum solids handled: 1/8 in. Suction lift: 18 ft. (dry) and 25 ft. (wet). The Wilden "Champ" is a pump with all wetted parts of injection-molded polypropylene. Characteristics of the T2-Series pumps are its strong suction lift capability, durable in the most adverse conditions, low initial cost, and ease of maintenance. Inlets: (1) 1/4 in. dia. FNPT (air), (1) 2 in. dia. suction port with a 4-1/4 in. dia. flange and (4) 1/2 in. dia. thru-holes at center distances of 2-1/4 in. Outlet: (1) 1/2 in. dia. FNPT (air exhaust), (1) 2 in. dia. discharge port with a 4-1/4 in. dia. flange and (4) 1/2 in. dia. thru-holes at center distances of 2-1/4 in. Overall dimensions: 11 in. L x 8-3/4 in. W x 14-1/4 in. H.