Repair Ring Flange, Stainless Steel, Closet Spacer Ring

Sioux Chief® 886-MR Stainless Steel Ringer™ Closet Flange Ring – Technical Product Information

The Sioux Chief® 886-MR Ringer™ Closet Flange Ring is a precision-engineered stainless steel repair and reinforcement component for closet flange installations. Designed for use in professional plumbing and mechanical applications, this flange ring ensures a secure, corrosion-resistant interface between the toilet fixture and the drain system. Manufactured with tight dimensional tolerances, the 886-MR provides structural reinforcement to existing or new flange assemblies, maintaining alignment and integrity under high load conditions.

Technical Specifications

• Product Code: 886-MR
• Manufacturer: Sioux Chief Manufacturing Company
• Product Name: Ringer™ Closet Flange Ring
• Application: Reinforcement and installation of closet (toilet) flanges
• Material: Type 304 Stainless Steel
• Finish: Machined and passivated corrosion-resistant surface
• Outer Diameter: Standard 7" nominal flange ring (fits 3" or 4" outlet configurations)
• Inner Diameter: Sized for secure fit around drain hub or pipe stub-out
• Mounting Holes: Pre-drilled for closet bolts and floor anchor fasteners
• Thickness: Heavy-gauge stainless for strength and long-term performance
• Compatibility: Designed for PVC, ABS, and cast-iron closet flange systems
• Installation Type: Retrofit or new construction flange assembly
• Connection Type: Bolt-down mechanical attachment to subfloor or flange base
• Load Rating: Tested for structural support under typical fixture loading conditions
• Environmental Resistance: Corrosion-, rust-, and chemical-resistant for long-term exposure
• Manufacturing Process:
  • Formed and precision-machined using Sioux Chief in-house tooling and die systems
  • Engineered for tight dimensional tolerance and uniform ring alignment
• Applicable Standards: Meets common plumbing installation and code requirements
• Country of Manufacture: USA

Performance and Design Features

• Provides secure anchoring for water closet bolts and maintains flange alignment
• Prevents flange failure, cracking, or movement during fixture installation or service
• Engineered from stainless steel for superior corrosion and load resistance
• Suitable for both repair and new construction applications
• Precision-stamped mounting holes ensure proper closet bolt positioning
• Low-profile design accommodates floor finishes without interference
• Compatible with Sioux Chief flange systems and other standard industry configurations

Professional Summary

The Sioux Chief® 886-MR Ringer™ Closet Flange Ring provides professional contractors with a high-strength, corrosion-resistant solution for reinforcing and securing closet flange installations. Fabricated from Type 304 stainless steel, this flange ring delivers mechanical stability, precise alignment, and long-term reliability in demanding commercial or residential applications. Its precision-machined construction and pre-drilled configuration simplify installation and ensure compliance with modern plumbing standards. Manufactured in the USA, the 886-MR represents Sioux Chief’s commitment to durable, field-tested plumbing system components.