4 inch Cast Iron Toilet Flange

Fox Foundry 1804 FOXF Closet Flange – Engineered for Secure Waste System Integration

The Fox Foundry 1804 FOXF Closet Flange is a heavy-duty component built for reliable toilet fixture mounting in both residential and commercial drain-waste-vent (DWV) systems. Designed to deliver consistent performance, this flange provides a secure, corrosion-resistant connection point between the toilet base and the building’s waste line.

Constructed from high-strength cast iron, this flange is ideal for installations requiring durability, fire resistance, and long service life. The hub connection facilitates a firm fit into 4” cast iron soil pipe, offering dimensional stability and rigidity under dynamic load conditions commonly found in high-use environments.

Technical Specifications

• Material: Cast Iron
• Nominal Size: 4” x 4”
• Connection: Hub-type for soil pipe integration
• Standards Compliance: Manufactured to meet applicable code requirements for sanitary DWV applications

Key Performance Attributes

• ✅ Structural Stability — Designed for vertical and lateral load-bearing performance in floor-mounted toilet installations.
• ✅ Dimensional Consistency — Precision-cast flange maintains tight tolerances for accurate alignment and sealing.
• ✅ Corrosion Resistance — Cast iron body resists degradation over time, even in high-moisture or chemically aggressive environments.

Installation Considerations

While installation is generally straightforward for experienced professionals, proper alignment and sealing are critical. Use of an approved sealant or jointing compound is recommended where applicable. In retrofit scenarios, contractors should verify pipe compatibility and structural soundness of the existing subfloor.

Application Context

This closet flange is frequently specified in both commercial restroom infrastructure and residential bath layouts. Its cast iron construction offers superior sound attenuation and fire resistance, making it well-suited for multi-story and high-occupancy structures.

Professional Insight

Cast iron DWV components continue to be favored in institutional and multi-unit projects due to their longevity and acoustic dampening properties. Fox Foundry flanges are trusted for their uniformity, mechanical strength, and conformance to industry standards.

Choose the Fox Foundry 1804 FOXF Closet Flange when reliability, material integrity, and code compliance are non-negotiable. Built for contractors who demand consistency across installations, it provides a robust connection that meets today’s performance and safety expectations.