The Waterway Top Load Filter [2" Extension With Bypass & Flow Restrict] [100 Sq. Ft.] is a practical replacement choice for pool and spa service work where fit, connection style, and application details matter. This Waterway Plastics item is associated with Nuts Bolts & Screws and is selected for hardware replacement when the existing part no longer performs as expected or when a system rebuild requires a correctly matched component. The listed configuration includes 2" Extension With Bypass & Flow Restrict, 100 Sq. Ft., making it easier to compare against the original part before ordering. Part number 502-9930 should be matched against the existing component, owner’s manual, or equipment label before installation. It works well for targeted equipment maintenance where the replacement needs to match the original shape, size, finish, or functional role. Checking the product specifications against the existing part helps avoid delays and supports a more confident repair. For best results, inspect the surrounding seals, unions, gaskets, screws, or mating surfaces during replacement, since related wear can affect performance even when the main component is new.This description is written to help identify the product by brand, part number, category, and application while keeping the content specific enough for search engines and useful enough for shoppers comparing similar pool and spa parts. Genuine or compatible Waterway Plastics replacement part for nuts bolts & screws Use part number 502-9930 to confirm the correct match before ordering Designed for compatible pool and spa equipment assemblies where fit and function are important Helpful for repair, rebuild, maintenance, or equipment restoration projects Professional installation is recommended when electrical, heater, pressure, or bonded plumbing work is involved