{"product_id":"westlake-pipe-fittings-dwv-d102-422-dwv-pvc-reducer-fitting","title":"Westlake Pipe Fittings dwv-d102-422 Dwv Pvc Reducer Fitting","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WESTLAKE PIPE FITTINGS dwv-d102-422 is a 4-inch by 3-inch PVC reducer fitting engineered for drain, waste, and vent (DWV) piping systems. It features two hub-style ends that accept standard pipe for solvent-weld connections. This fitting is rated for non-pressurized gravity-flow applications only and is not suitable for pressurized water supply lines. Plumbers and pipefitters use this reducer to transition between a 4-inch main line and a 3-inch branch or stub-out within residential and light commercial DWV systems.\u003c\/p\u003e\u003cp\u003eThis reducer fitting is used in new construction and retrofit DWV installations wherever a pipe size transition from 4 inches down to 3 inches is required. Typical applications include connecting a 4-inch soil stack or drain line to a 3-inch toilet flange takeoff, branch drain, or vent line. The hub-by-hub configuration allows a clean, solvent-welded transition that meets standard residential and commercial drain-waste-vent layout requirements.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-inch by 3-inch pipe size transition for DWV gravity-flow systems\u003c\/li\u003e\n\u003cli\u003eHub-style ends on both sides accept standard PVC pipe for solvent-weld connection\u003c\/li\u003e\n\u003cli\u003ePVC construction resists corrosion, chemical degradation, and buildup common in drain and waste service\u003c\/li\u003e\n\u003cli\u003eNon-pressurized DWV rating — not for use on supply or pressurized lines\u003c\/li\u003e\n\u003cli\u003eSuitable for residential and light commercial drain, waste, and vent installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and new-installation fitting for non-pressurized residential and commercial PVC drain, waste, and vent piping systems using standard 4-inch and 3-inch DWV pipe.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed plumbers or qualified pipefitters in accordance with the International Plumbing Code (IPC) and applicable local codes. Before cutting into any existing drain line, confirm the system is out of service and drained. Use PVC primer and solvent cement rated for DWV applications, applied per the cement manufacturer's instructions, to ensure a leak-free hub connection. This fitting is not rated for pressure testing above standard DWV gravity-flow conditions.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Hub x Hub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: PVC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Drain, Waste, and Vent (DWV) — non-pressurized only\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-d102-422\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Westlake Pipe \u0026 Fittings","offers":[{"title":"Default Title","offer_id":51138882142514,"sku":"DWV-D102-422","price":25.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305532302.jpg?v=1778265244","url":"https:\/\/voomisupply.com\/products\/westlake-pipe-fittings-dwv-d102-422-dwv-pvc-reducer-fitting","provider":"Voomi Supply","version":"1.0","type":"link"}