APV Crepaco R-Series Positive Displacement Pump. Model: R4R. Material of Construction: 316 stainless steel. Maximum Capacity: 160 gpm. Displacement per Revolution: 0.175 gal. APV Crepaco pumps are known for their rugged, long-lasting, and efficient performance. Every pump in the line has standard a stainless steel body, resilient molded rotors, and a heavy duty cast iron gear case which provides long-lasting, economical service over a wide range of products and applications. Its vented cover limits the discharge pressure at a predetermined setting. Pump cover not included. Overall dimensions: 1 ft. 2 in. L x 8-1/2 in. W x 1 ft. 1-1/2 in. H.