Waterway 1.5" Low Profile Union Tee Assembly (400-4740) is a practical replacement component from Waterway Plastics designed for pool and spa service applications where the right fit and dependable function matter. This part supports secure plumbing connections, efficient water flow, and reliable equipment repair, helping keep related equipment easier to maintain and more reliable during regular use. Use this item when repairing, rebuilding, or replacing a matching component in an existing pool or spa system. Matching the part number, size, style, and equipment series before installation is recommended to help ensure proper compatibility. Whether the repair involves filtration, plumbing, water movement, air control, or general equipment service, this replacement part gives technicians and homeowners a straightforward way to restore performance without replacing a larger assembly. Genuine Waterway Plastics replacement part for pool, spa, or equipment repair applications Part number 400-4740 helps confirm the correct item before ordering Useful for secure plumbing connections, efficient water flow, and reliable equipment repair Helps restore proper operation when the original component is worn, damaged, or missing A practical choice for service technicians, repair shops, and hands-on equipment owners