Oatey Company 4377 Mp Wax Extender Kit

Product Description

The OATEY COMPANY 4377 is a toilet wax ring extender kit designed for use in residential and light commercial plumbing installations where standard wax rings fall short. The kit includes a No Seep 3 urethane wax gasket along with a brass bolt kit sized at 0.25 inches by 3.5 inches. The urethane wax construction provides a reliable, long-lasting seal between the toilet horn and the closet flange. Backed by a 10-year guarantee, this kit is suited for installations where the finished floor sits higher than the flange or where additional wax depth is needed to achieve a proper seal.

This kit is intended for use in residential and light commercial toilet installations where the closet flange sits below the finished floor level. It is commonly used in remodel work where new tile or flooring has raised the floor height, creating a gap between the standard wax ring and the toilet horn. Licensed plumbers and skilled trade installers rely on this extender kit to ensure code-compliant, leak-free connections in these situations.

Key Features

• Includes No Seep 3 urethane wax gasket for a durable, compressible seal
• Brass bolt kit included, sized at 0.25 inches by 3.5 inches
• Extended wax depth accommodates raised floor installations
• 10-year guarantee against seal failure
• Sold as a complete kit — no additional wax ring or bolts required for most installations

Compatibility

Designed as an OEM-style replacement and new-installation wax seal solution for standard residential and light commercial toilet closet flange connections where extended wax depth is required.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and fully drain the toilet before beginning removal or installation. Set the toilet straight down onto the wax ring without rocking or shifting to avoid breaking the seal. Do not reuse a wax ring once it has been compressed — always install a fresh ring if the toilet is reset.

Technical Specifications

• Bolt Size: 0.25 inches x 3.5 inches
• Bolt Material: Brass
• Wax Type: No Seep 3 Urethane Wax
• Guarantee: 10 years
• Weight: 14 pounds
• Unit of Measure: EA
• Package Quantity: 12

Standard Information

• Brand: OATEY COMPANY
• Manufacturer Part Number: 4377