Metal Pu Fitting Straight 4mm

PACK SIZE

The price displayed for this product is the unit price of the product. Where a PACK SIZE is indicated, this refers to the recommended ordering quantity and is also indicative of how many of these products are packaged in a box.

Model: SG MPUC04
Weight: 0.01kg
Pack Dim: 30.00mm x 10.00mm x 10.00mm
UPC: 6009515891657

Price:

R 43.64

Ex VAT: R 37.95

Available Options

Stockist

AirCraft Metal PU Fitting Straight Union 4mm (SG MPUC04)

At a Glance; Compact straight union to join two 4mm push-in pneumatic tubes in-line.

The AirCraft SG MPUC04 Metal PU Fitting Straight is the no-drama way to connect two 4mm pneumatic/PU tubes in a clean, in-line run. Whether you’re extending a line, repairing a cut section, or building a neat pneumatic layout, this straight union coupler gives you a quick, secure push-in connection on both ends. With durable metal construction and a compact profile, it’s a solid choice for workshop and industrial compressed-air setups where tidy routing and reliable sealing matter.

Quick, tidy tube-to-tube connection with an AirCraft metal straight union

Ideal for line extensions and repairs, this push-in coupler keeps your 4mm pneumatic tubing neatly joined and easy to service.

Extra Information

Use clean, round 4mm pneumatic/PU tubing and ensure cuts are square before inserting.
Push the tube in fully until it seats, then do a gentle pull-back test to confirm it’s locked.
After installation, pressurise slowly and check for leaks using soapy water.

Pro Tip

If a tube end is scratched or oval, trim it back and re-cut square—push-in fittings seal best on a clean, undamaged tube end.

Features

Straight union design Joins two tubes in-line for a clean, compact air line connection.
4mm push-in ports (both ends) Fast, secure tube fitment for quick assembly and maintenance.
Metal construction Durable body built for everyday workshop pneumatic use.
Compact profile Fits neatly into tight installs and tidy cable/air management routes.

Benefits

Fast repairs; Restore a damaged air line section without replacing the entire run.
Easy extensions; Add length to 4mm tubing quickly and keep routing neat.
Reliable seal; Secure push-in grip helps reduce leak risk in your compressed-air system.

Safety

Always depressurise the air system before installing or removing pneumatic fittings.
Wear eye protection when working with compressed air and pressurised lines.
Inspect tubing for cracks, kinks or wear and replace damaged sections before pressurising.
Pressurise slowly after installation and check connections for leaks using soapy water (never use open flames).

Specifications

Description	Spec
Brand	AirCraft
Cat No.	SG MPUC04
Product Type	Metal PU/Pneumatic Push-In Straight Union
Tube Size	4mm
Connections	Tube-to-Tube (Push-In x Push-In)
Fitting Style	Straight Union / Coupler
Material	Metal
Application	Pneumatic / Compressed Air Line Connection