Sioux Chief Mfg Co. 886-P 4x3 Pvc Closet Flange

Product Description

The SIOUX CHIEF MFG CO. 886-P is a 4-inch by 3-inch Schedule 40 DWV PVC closet flange designed for residential and commercial toilet installation. This flange connects the toilet base to the drain waste vent system, creating a secure, leak-resistant seal between the fixture and the drain line. Constructed for Schedule 40 DWV applications, it meets the dimensional and pressure standards required for above-floor drain connections. Licensed plumbers and experienced installers use this flange as a standard component in new construction and retrofit toilet rough-in work.

This closet flange is suited for toilet installations where a 4-inch flange collar connects to a 3-inch drain line below. It is used in residential bathrooms, commercial restrooms, and multi-unit housing projects. The 4-inch top ring accommodates standard toilet horn geometry, while the 3-inch hub transitions into the existing drain stack or branch line. This package contains 20 units per case, making it appropriate for contractors working on multi-fixture or multi-unit projects.

Key Features

• 4-inch top collar with 3-inch hub for common residential and commercial drain configurations
• Schedule 40 DWV PVC construction for durability in drain waste vent systems
• Standard flange ring accommodates toilet bolts and wax ring seating
• Sold in a case of 20 units, suitable for volume plumbing work
• Compatible with PVC DWV pipe systems per standard Schedule 40 specifications

Compatibility

Designed as an OEM-style replacement and new-construction fitting for PVC Schedule 40 DWV drain waste vent systems requiring a 4-inch flange collar over a 3-inch drain line.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and clear the drain line before beginning work. Solvent-weld the 3-inch hub to the drain pipe using appropriate PVC primer and cement, following the cement manufacturer's cure time before setting the toilet. Do not overtighten toilet flange bolts, as this can crack the flange collar.