

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION W04-21221-B is a pneumatic quick connect plug designed for fast, tool-free coupling and decoupling of compressed air lines. Built from steel with a zinc finish for corrosion resistance, this plug features a 1/4 inch male x female NPT thread configuration and a 3/4 inch body diameter. It is used in pneumatic systems found in maintenance, industrial, and shop environments where reliable, repeatable air line connections are required. Licensed plumbers, pipefitters, and maintenance technicians install this type of fitting as part of compressed air distribution and tool-connection assemblies.
This quick connect plug suits applications where shop air tools, blow guns, pneumatic actuators, or similar equipment are connected and disconnected frequently. The 1/4 inch NPT thread size is one of the most common standards in light-duty and general-purpose compressed air systems. The zinc-finished steel body provides durability in typical shop and light industrial environments. This fitting is sold as a single unit and is compatible with standard quick connect coupling bodies accepting 1/4 inch NPT plugs.
Designed as a replacement or additional plug for standard pneumatic quick connect coupling systems accepting 1/4 inch male x female NPT plug-style fittings.
Depressurize the air line completely before installing or removing any pneumatic fitting. Apply thread sealant tape to NPT threads per standard practice and tighten to snug fit without overtightening steel threads. A licensed pipefitter or qualified maintenance technician should verify that the fitting is rated for the system operating pressure before placing it in service. Follow applicable shop safety and compressed air system codes for your jurisdiction.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!