The Hayward SP1419D White 3/4Inch Opening Hydrostream Directional Flow Inlet Fitting with 11/2Inch MIP Thread is a four pack bundle designed for pool circulation systems that use Hydrostream directional flow inlets. It provides a reliable, easy to install solution for directing water flow where it is most effective. Key benefits Improves circulation by directing water flow precisely to targeted areas, helping to optimize pool performance and skimming efficiency. Easy replacement for worn or damaged directional flow inlet fittings within Hydrostream systems, reducing downtime. Standard 11/2 inch MIP thread allows straightforward integration with compatible plumbing and fittings. White finish blends with most pool equipment and trim for a clean, consistent appearance. Durable construction designed for long term use in pool water environments. Key attributes Functionality: directional flow inlet fitting for Hydrostream systems, enabling controlled water direction. Compatibility: designed for 11/2 inch MIP threaded connections and Hayward Hydrostream directional flow inlets. Size: 3/4 inch opening with 11/2 inch MIP thread. Material: built for durability in pool water environments (appropriate for standard pool plumbing applications). Color: white. Performance: supports reliable, directional water flow to enhance circulation and overall pool water movement. Package: 4 pieces included in the bundle. Included in the bundle 4 x SP1419D directional flow inlet fittings Use cases Replacement for worn or damaged Hydrostream directional flow inlet fittings in existing pool plumbing, restoring proper flow direction and performance. Retrofit or install additional directional flow inlets in a pool to improve circulation for larger or more complex pool layouts. Seasonal pool service stocking: keep a ready supply of compatible fittings on hand to support quick maintenance or service calls. Installation notes Ensure the mating connection is clean and of debris before installation. Thread into a compatible female 11/2 inch MIP connection by hand until snug, then complete as required by the system. Verify secure fit and check for leaks after installation. This description reflects the product brand, model SP1419D, features, and bundle specification, while clearly communicating benefits, attributes, and practical applications.