InstantAir Female Thread Coupling Rp 3/8 | Steel Quick Release Air Fitting

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Description

InstantAir Steel Range · Professional Grade

Female Thread Air Coupling
Rp 3/8 — Steel Quick Release Fitting

Engineered for the demands of professional pneumatic systems. A precision-machined steel coupling that delivers consistent, leak-free airflow across the full pressure range of your compressor setup.

Overview

The InstantAir Rp 3/8 Female Thread Coupling is a workshop-grade quick-release fitting built for reliability under sustained industrial use. Machined from hardened steel and rated to 17 bar / 250 psi, it connects air tools, hose assemblies, and compressor lines with a single-handed snap action — no thread tape, no leaks, no downtime. With a nominal bore of 5.6 mm and a flow rate of 54 cfm at 100 psi, it maintains full airflow to demanding tools including impact wrenches, spray guns, and pneumatic grinders.

Why Professionals Choose It

Maximum Pressure Rating Rated to 17 bar / 250 psi — handles the full output of professional compressor systems without fatigue or seal degradation.

High-Flow Performance 54 cfm at 100 psi ensures unrestricted airflow to high-demand tools. No bottlenecking at the coupling point.

All-Steel Construction Hardened steel body resists impact, corrosion, and workshop abuse. Built to outlast the tools it connects.

Wide Temperature Range Operates reliably from −20°C to +80°C — suitable for cold stores, outdoor sites, and high-heat fabrication environments.

Rp 3/8 Female Thread Parallel internal thread (Rp/BSPP) for a pressure-tight seal without sealant. Compatible with standard BSP pneumatic fittings.

Display Packed Retail-ready packaging — ideal for trade counters, tool stores, and organised workshop storage. Clean, professional presentation.

Technical Specifications

Specification Detail

Product Type Air Coupling — Quick Release

Connection Type Female Thread (Internal)

Thread Standard Rp 3/8 (BSPP — Parallel)

Material Hardened Steel

Nominal Bore 5.6 mm

Flow Rate 54 cfm @ 100 psi

Max Working Pressure 17 bar / 250 psi

Operating Temperature −20°C to +80°C

Compatible Systems Compressed air & pneumatic

Packaging Display Packed

SKU air_comp236

Range InstantAir Steel Range

Barcode AC015014875332581

Typical Applications

Impact wrenches & air ratchets

Pneumatic spray guns & HVLP systems

Air-powered grinders & sanders

Tyre inflation & blow guns

Compressor manifold connections

Workshop hose assemblies

Fabrication & maintenance rigs

Trade counter retail display

Rated To
17 bar / 250 psi

Flow Rate
54 cfm @ 100 psi

Thread
Rp 3/8 BSPP

Material
Hardened Steel

Stock
UK Held

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Zara T
Quick connect feature of the InstantAir Coupling with Female Thread Rp 3/8 is a game-changer. It's user-friendly
Florence R
No leaks! The Female Thread Rp 3/8 on the InstantAir Coupling creates a tight seal. It's a reliable choice for ensuring a leak-free connection, and the display packaging is a plus.
Elsie H
Functional and straightforward. The InstantAir Coupling with Female Thread Rp 3/8 gets the job done without unnecessary frills. Good for basic pneumatic applications. Display packaging is informative.
Arabella T
Efficient airflow with the Female Thread Rp 3/8 on the InstantAir Coupling. It's versatile and provides a secure connection for my pneumatic tools. Very satisfied with the display packaging.
Harper E
Installation was a breeze with the InstantAir Coupling. The Female Thread Rp 3/8 fit perfectly, and its quick-connect feature, coupled with display packaging, makes it user-friendly. Highly recommended.
Jessica M
Impressed with the sturdy design of the InstantAir Coupling. The Female Thread Rp 3/8 fits well, and the coupling feels durable. Display packaging is a bonus for easy identification.
Gladys G
InstantAir Coupling with Female Thread Rp 3/8 in display packaging is a winner. Convenient and easy to find, the Rp 3/8 thread ensures a secure fit. A must-have for quick connections.

Our Clients

Zara T
Quick connect feature of the InstantAir Coupling with Female Thread Rp 3/8 is a game-changer. It's user-friendly
Florence R
No leaks! The Female Thread Rp 3/8 on the InstantAir Coupling creates a tight seal. It's a reliable choice for ensuring a leak-free connection, and the display packaging is a plus.
Elsie H
Functional and straightforward. The InstantAir Coupling with Female Thread Rp 3/8 gets the job done without unnecessary frills. Good for basic pneumatic applications. Display packaging is informative.
Arabella T
Efficient airflow with the Female Thread Rp 3/8 on the InstantAir Coupling. It's versatile and provides a secure connection for my pneumatic tools. Very satisfied with the display packaging.
Harper E
Installation was a breeze with the InstantAir Coupling. The Female Thread Rp 3/8 fit perfectly, and its quick-connect feature, coupled with display packaging, makes it user-friendly. Highly recommended.
Jessica M
Impressed with the sturdy design of the InstantAir Coupling. The Female Thread Rp 3/8 fits well, and the coupling feels durable. Display packaging is a bonus for easy identification.
Gladys G
InstantAir Coupling with Female Thread Rp 3/8 in display packaging is a winner. Convenient and easy to find, the Rp 3/8 thread ensures a secure fit. A must-have for quick connections.

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InstantAir Female Thread Coupling Rp 3/8 | Steel Quick Release Air Fitting

Description

Female Thread Air Coupling
Rp 3/8 — Steel Quick Release Fitting

Payment & Security

Our Clients

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Specification	Detail
Product Type	Air Coupling — Quick Release
Connection Type	Female Thread (Internal)
Thread Standard	Rp 3/8 (BSPP — Parallel)
Material	Hardened Steel
Nominal Bore	5.6 mm
Flow Rate	54 cfm @ 100 psi
Max Working Pressure	17 bar / 250 psi
Operating Temperature	−20°C to +80°C
Compatible Systems	Compressed air & pneumatic
Packaging	Display Packed
SKU	air_comp236
Range	InstantAir Steel Range
Barcode	AC015014875332581

InstantAir Female Thread Coupling Rp 3/8 | Steel Quick Release Air Fitting

Description

Female Thread Air CouplingRp 3/8 — Steel Quick Release Fitting

Payment & Security

Female Thread Air Coupling
Rp 3/8 — Steel Quick Release Fitting