For technicians performing furnace repair or routine heating system maintenance

this 3/4-inch NPT threaded valve is engineered for durability and compliance with modern potable water safety standards

Common Questions What is the flow direction for this Parker valve

What causes this coil to overheat

Carrier 23XR660003 Oil Filter Kit 321702-401 For technicians performing furnace repairThe Carrier 23XR660003 Oil Filter Kit is a critical maintenance component designed for high tonnage industrial chillers and commercial HVACR systems. Engineered to meet OEM specifications, this kit includes a high efficiency pleated oil filter element and a comprehensive set of Viton O rings (2. 5", 1. 25", and 0. 5" diameters) to ensure a vacuum tight seal during routine service. The pleated media provides an expanded surface area, effectively