The Sioux Chief 884-ATM ABS/DWV Closet Flange is a critical plumbing component for toilet installation and repair. This flange connects the toilet to the drainpipe and features a solid ABS construction with a corrosion-resistant stainless steel swivel ring. Whether you’re installing a new toilet or replacing a damaged flange, this dual-size model accommodates both 3-inch hub and 4-inch inside connections, making it a versatile choice for a wide range of plumbing configurations.
The key advantage of this flange is its knockout design that won’t separate or fall into the drain during installation. The solid ABS construction combined with the stainless steel swivel ring eliminates common problems with standard flanges. The durable materials ensure the flange remains functional and secure for years of daily use, while the flush-to-floor design creates a seamless installation.
Features and Benefits
- Solid Knockout Construction: The knockout remains in place and won’t drop into the drain, preventing installation complications.
- Corrosion-Resistant Ring: The stainless steel swivel ring resists rust and deterioration, ensuring long-lasting durability.
- Dual-Size Design: Fits either a 3-inch hub or 4-inch inside connection, offering flexibility for different drain configurations and toilet models.
- ABS Construction: Durable ABS plastic provides resilience and keeps the flange functional for years of daily use.
- Flush-to-Floor Profile: Designed to sit flush with the floor for a clean installation.
- Easier Installation: No need to hold or support the knockout during assembly, streamlining the installation process.
Specifications
- Brand: Sioux Chief
- Model: 884-ATM
- Connection Size: 3 in. hub or 4 in. inside
- Material: ABS with stainless steel swivel ring
- Design: Flush to floor








