General Air Products, Inc. has expanded its residential pump line with the addition of the Econo RFP System for NFPA 13D applications. The Econo RFP System is designed to provide all 13D required features and functionality at the lowest possible cost without compromising the high level of quality the industry has come to expect from General Air Products. As with all of the RFP Systems the Econo consists of a stainless steel pump, non-ferrous components and an industrial duty pressure switch.