Zoro Select 220820 Female Tee Sanitary Tee 3" x 4" Pipe Cast

Zoro Select 220820 Female Tee

The Zoro Select 220820 is a cast iron female tee sanitary tee designed for plumbing installations. It connects a 3 inch socket to a 4 inch socket using female socket ends. The fitting is made from gray cast iron with a black asphalt coating and is rated for Class 0 psi maximum operating pressure. It suits installers needing a durable drainage junction.

Practical limits of cast iron drainage fittings

Cast iron drainage fittings like this tee are rated for gravity flow at zero pressure. They must not be used in pressurised supply lines or pumped systems. The socket joints require proper gasket or lead-and-oakum sealing to prevent leaks. Thermal expansion and ground movement can stress rigid cast iron, so adequate support and alignment are essential during installation.

Check your existing drainage setup before ordering

Verify that your existing pipework uses compatible 3 inch and 4 inch socket dimensions for a secure fit. Confirm the system operates under gravity drainage only and does not exceed the Class 0 psi rating. Ensure you have the correct gaskets, lubricant and tools for cast iron socket joints. Check local plumbing codes for approved materials and installation methods.