Value Collection W04-21121-B Quick Connect Plug 1/4 in Mnpt

Product Description

The VALUE COLLECTION W04-21121-B is a pneumatic quick connect plug designed for use in compressed air systems and pneumatic tool circuits. Built from steel with a zinc finish, this plug features a 1/4 inch male NPT (MNPT) thread and a 3/4 inch body diameter. It serves as the male half of a quick connect coupling set, allowing for fast, tool-free connection and disconnection of air lines. Licensed HVAC technicians, industrial maintenance techs, and pneumatic system installers commonly use couplings of this type when building or servicing compressed air distribution lines.

This quick connect plug is suited for residential and light commercial pneumatic applications including air compressor hose assemblies, pneumatic tool connections, and shop air systems. The 1/4 inch hose inside diameter compatibility makes it a standard fit for common air hose configurations. The zinc finish provides a degree of corrosion resistance for typical shop and field environments. It is sold individually and is compatible with 1/4 inch NPT port fittings on compressors, regulators, and manifolds.

Key Features

• Quick connect plug style for tool-free air line connection and disconnection
• 1/4 inch MNPT thread for standard NPT port fitment
• 3/4 inch body diameter for secure grip and flow capacity
• Steel construction with zinc finish for durability and corrosion resistance
• Compatible with 1/4 inch inside diameter air hose
• Sold as a single unit with no minimum order requirement beyond one piece

Compatibility

Designed as an OEM-style replacement or service plug for pneumatic systems using standard 1/4 inch NPT quick connect couplings, compatible with 1/4 inch inside diameter air hose assemblies.

Installation Notes

Installation should be performed by a qualified technician familiar with pneumatic systems and compressed air safety. Always depressurize the air line fully before removing or installing any coupling or fitting. Apply thread sealant tape or compound to the MNPT threads as appropriate per shop practice before threading into the mating port. Torque by hand until snug, then use a wrench for a secure, leak-free connection without over-tightening the steel threads.