Armstrong Fluid Technology 110223-305 Pump THPU32HP7Y the housing is designed to

the housing is designed to accept standard 1-7/16 inch shaft inserts

utilizing a 1/4-inch O

This OEM furnace safety part is engineered to monitor the burner vestibule and instantly interrupt the heating circuit if it detects a flame rollout or excessive heat buildup

low fire turn-down

Armstrong Fluid Technology 110223-305 Pump THPU32HP7Y the housing is designed toThe Armstrong Fluid Technology 110223 305 Pump, also known as the Model ASTRO 230CI, is a high performance, three speed cast iron circulator designed for closed loop hydronic and solar heating systems. This wet rotor circulator efficiently moves water or glycol solutions through radiators, baseboards, and radiant floor heating setups. As a maintenance free circulator, it features a self lubricating ceramic shaft and bearings, eliminating the need for