4 X 3 GALV RED COUP

4" x 3" Galvanized Reducing Coupling (4 X 3 GALV RED COUP)

This is a threaded pipe fitting used to connect two different pipe sizes in a straight line while reducing the diameter.

What it is

A galvanized steel reducing coupling:

• One end fits 4" male NPT pipe
• Other end fits 3" male NPT pipe

Both ends are internally threaded, allowing two pipes of different sizes to be joined.

What it does

• Connects a 4-inch pipe to a 3-inch pipe
• Provides a straight-line size reduction
• Creates a secure, leak-resistant threaded joint

Key features

• Material: galvanized steel (zinc-coated for corrosion resistance)
• Connection type: female threaded on both ends (NPT)
• Design: straight reducing coupling
• Used in pressurized piping systems

Common applications

• Water distribution systems
• Mechanical and HVAC piping
• Industrial process piping
• Systems where pipe size needs to transition in a straight run