Stenner Roller Assy [Tube Housing] (UC3ASYD) is a replacement roller assembly for compatible Stenner pump tube housings. The roller assembly is an important part of the peristaltic pumping action, compressing the tube to move chemical solution through the feeder line. When rollers are worn, damaged, or no longer turning smoothly, chemical feed performance can become inconsistent and pump tube wear may increase. This Stenner Pumps component is useful for routine service, tube housing rebuilds, and chemical feeder repair work. Restoring the roller assembly helps support steady dosing and reliable pump operation in pool, spa, and water treatment applications. It is a practical part to keep available for equipment maintenance where feeder uptime and consistent chemical management are important. Replacement roller assembly for compatible Stenner tube housing applications Supports proper peristaltic pumping action and chemical movement Helpful when repairing worn rollers or inconsistent feeder operation Designed for chemical dosing systems used in pool and water treatment service Part number UC3ASYD helps confirm the correct Stenner replacement