the "/U" suffix typically denotes individual packaging

range to handle varying fluid conductivities without nuisance tripping

though vertical-upright is recommended to prevent sediment buildup

For use with TP970 Series

Its UL Listed housing ensures safety and durability in demanding mechanical rooms

Armstrong Fluid Technology 818504-000K Assembly kit Freon the "/U" suffix typically denotesThe Armstrong Fluid Technology 818504 000K Seal Bearing Assembly Kit is a premium, maintenance free solution designed to restore the performance of your circulator pumps. This high efficiency SBA MF 5 Series assembly is engineered for durability, featuring a stainless steel shaft and an EPDM sintered silicon carbide seal to prevent leaks and ensure long term reliability in demanding HVACR environments. As a genuine OEM replacement, the 818504 000K