{"product_id":"nds-3p12-pvc-increaser-reducer-adapter-3-to-4-inch-dwv-s-d-hub-connection-white","title":"NDS 3P12 PVC Increaser\/Reducer Adapter — 3-to-4-Inch DWV\/S\u0026D Hub Connection (White)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe NDS \u003cstrong\u003e3P12 PVC Increaser\/Reducer Adapter\u003c\/strong\u003e is a compact, reliable transitional piece designed for non-pressurized drainage systems. It enables a 3-inch DWV or SCH40 hub to connect to a 4-inch Sewer \u0026amp; Drain (S\u0026amp;D) hub, helping water flow smoothly toward downstream pipes with a clean, joined seam.\u003c\/p\u003e\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTransitional compatibility: bridges 3-in to 4-in connections across DWV\/SCH40 and S\u0026amp;D piping networks.\u003c\/li\u003e\n  \u003cli\u003eWatertight performance: hub-to-hub solvent-weld options provide a sealed joint and reduced leakage risk.\u003c\/li\u003e\n  \u003cli\u003eBroad component compatibility: pairs with channel drains, drainage grates, and pop-up emitters within a complete drainage plan.\u003c\/li\u003e\n  \u003cli\u003eStandards-aligned design: crafted for Sewer \u0026amp; Drain and DWV Schedule 40 piping per applicable ASTM specs (D2729, D3034, D2751, and D2665).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResidential drainage projects in basements or crawl spaces needing a 3-inch line to connect to a 4-inch main.\u003c\/li\u003e\n  \u003cli\u003eOutdoor drainage runs requiring a formal size transition without bulky reducers.\u003c\/li\u003e\n  \u003cli\u003eSystems that incorporate channel drains or pop-up emitters and require reliable hub connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade from durable PVC, the 3P12 adapter supports hub-to-hub solvent-weld installations, offering a neat, dependable path for water flow. While it enhances layout flexibility, users should confirm proper slope and venting per local codes to achieve optimal drainage performance. This product is intended for non-pressurized drainage and sewer systems and is not a substitute for venting or other essential plumbing practices.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What pipe sizes does the NDS 3P12 adapter connect?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It connects 3-inch DWV\/SCH40 hub pipes to 4-inch S\u0026amp;D hub pipes for non-pressurized drainage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this adapter be used with channel drains or pop-up emitters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it supports hub connections in compatible drainage layouts including channel drains and pop-up emitters.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NDS","offers":[{"title":"Default Title","offer_id":43987178455174,"sku":"B00FK8U1MY","price":9.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/nds-3p12-pvc-increaser-reducer-3-to-4-inch.jpg?v=1778835675","url":"https:\/\/patiozora.com\/products\/nds-3p12-pvc-increaser-reducer-adapter-3-to-4-inch-dwv-s-d-hub-connection-white","provider":"PatioZora","version":"1.0","type":"link"}