Sioux Chief 884-PTM PVC Closet Flange with Test Knockout and Stainless Steel Swivel Ring, 3" x 4"

Sioux Chief 884-PTM PVC Closet Flange with Test Knockout and Stainless Steel Swivel Ring, 3" x 4"

The Sioux Chief 884-PTM is a PVC closet flange built for behind-the-wall and under-floor toilet rough-in work, featuring a 3" hub that accepts 4" DWV pipe and a Test Knockout (TKO) that lets plumbers pressure- or water-test the drain line before the fixture is ever set. A stainless steel swivel ring rotates independently of the flange body so the closet bolt slots can be squared to the toilet base even if the flange itself lands slightly out of alignment during rough-in. Molded from PVC for corrosion resistance in wet, below-slab, and crawlspace conditions, this flange is designed to be solvent-welded or fitted into the drain stub-out and set flush to the finished floor so the toilet sits level and properly sealed once the flooring is down.

Key Features

• Trade Size: 3" hub connects to 4" DWV pipe for standard toilet drain rough-in.
• Durable PVC Construction: Molded PVC body resists corrosion and is well suited to below-grade, slab, and wet rough-in conditions.
• Test Knockout (TKO): Removable knockout section keeps the drain line sealed for pressure- or water-testing before the flange is permanently set, then knocks out cleanly for final installation.
• Stainless Steel Swivel Ring: Rotating ring lets closet bolt slots be aligned independently of the flange body for accurate toilet setting, even on a rotated or offset rough-in.
• Hub-Style Connection: Hub end is sized to fit directly over 4" DWV pipe for a straightforward rough-in tie-in without extra adapters.
• Flush-Set Design: Flange sets flush to the finished floor for a stable, level base under the toilet flange bolts.

Technical Specifications

• Trade Size: 3" Hub x 4" Pipe
• Material: PVC body with stainless steel swivel ring
• Country of Origin: United States
• Packaging: 24 EA per carton

Typical Applications

• Toilet and Water Closet Rough-In Installations
• Residential and Commercial DWV Plumbing
• New Construction and Remodel Rough-In
• Slab-on-Grade and Wood-Frame Floor Rough-In
• Contractor Bulk Stocking for Multi-Unit Toilet Rough-In

Why Sioux Chief?

Sioux Chief builds rough-in plumbing products for the trade, and the 884-PTM closet flange reflects that focus with a PVC body sized for direct DWV tie-in, a Test Knockout that supports proper pre-set drain testing, and a stainless steel swivel ring that helps plumbers land closet bolts square on the first try. Packaged 24 EA per carton, it is a straightforward, function-first flange for contractors and plumbing crews setting toilets behind the wall and under the floor on new construction and remodel jobs alike.