A.O. Smith SP-1250-Z-1-M is a 1/2 HP single-phase pump motor designed for 115 V operation. This two-pole motor runs at about 3450 RPM and sits in a 48-frame housing, a common footprint for residential pool and spa pumps that specify a 48-frame, 1-phase AO Smith motor. In current listings, the SP-1250-Z-1-M is offered as a refurbished unit, providing a cost-effective option that preserves the original AO Smith design and mounting pattern. The model designation indicates a single-phase, 115 V motor with a 2-pole configuration, suitable for equipment that uses a 48-frame, 1-phase motor for circulating and filtration duties in home pools and hot tubs.
