{"product_id":"fernco-inc-p44u-405-cast-iron-hub-donut-4-inch","title":"Fernco Inc P44U-405 Cast Iron Hub Donut 4 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe FERNCO INC P44U-405 is a 4-inch cast iron hub donut designed to create a leak-resistant transition between service weight cast iron pipe and the plain end of 4-inch PVC Schedule 40 plastic pipe. This fitting seats inside the cast iron hub and accepts the PVC pipe end, eliminating the need for lead and oakum or specialized joining tools. It is a compression-style mechanical coupling component used in drain, waste, and vent (DWV) systems. Plumbers and pipefitters install this fitting during new construction, renovations, or repair work where cast iron and plastic pipe systems must be joined at a hub connection.\u003c\/p\u003e\u003cp\u003eThis hub donut is used in residential and light commercial DWV applications where a 4-inch service weight cast iron hub meets a 4-inch PVC Schedule 40 plain-end pipe. It is a common repair and retrofit fitting found in older homes being updated from cast iron to PVC drain lines, as well as in new construction where mixed-material drain systems are specified. It installs without solvent cement, caulking, or flame — the donut compresses into the hub to form a seal around the PVC pipe insertion.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eConnects 4-inch service weight cast iron hub to 4-inch PVC Schedule 40 plain-end pipe\u003c\/li\u003e\n\u003cli\u003eCompression-style fit requires no lead, oakum, or open flame\u003c\/li\u003e\n\u003cli\u003eDesigned for use in DWV drain, waste, and vent piping systems\u003c\/li\u003e\n\u003cli\u003eSold in packages of 20 units per package quantity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 4-inch service weight cast iron pipe hubs and the plain end of 4-inch PVC Schedule 40 plastic pipe in DWV applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed plumbers following applicable plumbing codes such as the IPC or local adopted standards. Shut off water supply and verify the system is depressurized before beginning work. Seat the donut firmly into the cast iron hub before inserting the PVC pipe end to ensure a proper compression seal. Do not use pipe dope, solvent cement, or sealants unless specifically required by the authority having jurisdiction.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Pipe Type (Hub)\u003c\/strong\u003e: Service Weight Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Pipe Type (Plain End)\u003c\/strong\u003e: PVC Schedule 40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 20 EA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: FERNCO INC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: P44U-405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FERNCO","offers":[{"title":"Default Title","offer_id":51525151686962,"sku":"P44U-405","price":127.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8a14caf2eabf3eebddee2649064b074f_9343cd0b-ed04-44a3-9402-342fd7212154.jpg?v=1785465613","url":"https:\/\/voomisupply.com\/products\/fernco-inc-p44u-405-cast-iron-hub-donut-4-inch","provider":"Voomi Supply","version":"1.0","type":"link"}