Waterway Poly Storm Jet Internal [3-5/8" FD] [Swirl] [Twin Roto] [Threaded] [White/SS] (229-4040S) is a Waterway Plastics jet internal intended for spa, hot tub, or bath jet repair where the original jet insert, trim, or internal assembly needs to be matched closely by size, face style, action, finish, and threading. This item belongs to the Poly Storm style grouping and should be selected by comparing the visible face diameter, internal style, connection type, and the exact OEM part number before installation. The details shown for this SKU include 3-5/8" Face Diameter, Swirl, Twin Rotational, Threaded, White/Stainless Steel, making it useful when a customer is replacing a worn, discolored, damaged, or missing jet component rather than changing the entire plumbing body.For best results, verify the existing spa jet by measuring the face diameter, checking whether the part is threaded or non-threaded, and confirming the finish against the current spa shell and surrounding fittings. Because many Waterway jet families use similar-looking faces, small differences such as Swirl, Twin Rotational, Threaded or White/Stainless Steel can determine whether the part fits and performs correctly. This description is written to help shoppers identify the replacement more confidently, especially when matching older Waterway Plastics jet assemblies where cosmetic style and internal function both matter. Designed for Waterway replacement use in the Jets & Parts category Matches the listed configuration: 3-5/8" Face Diameter, Swirl, Twin Rotational, Threaded, White/Stainless Steel Useful for replacing a worn, broken, faded, or missing jet internal without replumbing the spa Confirm face diameter, threaded style, finish, and jet action before ordering Use part number 229-4040S as the final match point when comparing to the original component