{"product_id":"westlake-pipe-fittings-dwv-d107-420-flush-dwv-bushing","title":"Westlake Pipe Fittings dwv-d107-420 Flush Dwv Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WESTLAKE PIPE FITTINGS dwv-d107-420 is a flush-style PVC bushing designed for drain, waste, and vent (DWV) piping systems. It reduces a 4-inch pipe to a 2-inch connection using a spigot-by-hub end configuration. The spigot end inserts into an existing 4-inch hub fitting, while the 2-inch hub end accepts standard DWV pipe. Manufactured from PVC, this bushing is suited for gravity-flow drainage applications in residential and light commercial plumbing. Licensed plumbers and pipefitters install this fitting as part of DWV rough-in work.\u003c\/p\u003e\u003cp\u003eThis fitting is used in drain, waste, and vent systems where a reduction from 4-inch to 2-inch nominal pipe size is required. Typical applications include branch connections, stack reductions, and fixture drain tie-ins in residential or light commercial construction. The flush bushing profile keeps the fitting seated flush within the receiving hub, maintaining a clean transition without protruding shoulders that could interfere with adjacent fittings or tight spaces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFlush bushing design seats fully within a 4-inch hub for a compact, clean transition\u003c\/li\u003e\n\u003cli\u003eSpigot x Hub end configuration for straightforward solvent-weld installation\u003c\/li\u003e\n\u003cli\u003eNominal reduction from 4 inches to 2 inches for DWV branch and stack applications\u003c\/li\u003e\n\u003cli\u003ePVC construction provides resistance to common drain waste and chemical exposure\u003c\/li\u003e\n\u003cli\u003eRated for DWV service — not for pressure applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation fitting for residential and light commercial PVC DWV piping systems using standard 4-inch and 2-inch nominal pipe sizing.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) or applicable local plumbing codes. Solvent-weld the spigot end into the receiving 4-inch hub using PVC primer and solvent cement rated for DWV fittings. Shut off water supply and ensure the line is fully drained before cutting into an existing system. Allow full cure time per the cement manufacturer instructions before restoring flow.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: PVC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Pipe Size\u003c\/strong\u003e: 4 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Spigot x Hub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Drain, Waste, and Vent (DWV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 40172308\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WESTLAKE PIPE FITTINGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: dwv-d107-420\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Westlake Pipe \u0026 Fittings","offers":[{"title":"Default Title","offer_id":51138389377330,"sku":"DWV-D107-420","price":23.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305532640.jpg?v=1778255022","url":"https:\/\/voomisupply.com\/products\/westlake-pipe-fittings-dwv-d107-420-flush-dwv-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}