RPB 1/4" Quick Release Coupler – 1/4" NPT Female Thread

Part Number: 407025

The RPB® 1/4" Quick Release Coupler with 1/4" NPT female threads is the official OEM-approved air connection coupler for the Nova 3®, Nova 2000®, and Astro® respirator systems. Designed with an enhanced dust-seal system, this coupler ensures a secure, contamination-resistant connection between your air supply line and respirator, maintaining safe, clean airflow in demanding industrial environments.

Built from high-strength materials and engineered for reliability, the 407025 coupler delivers durable, leak-free performance for abrasive blasting, coating, welding, and general industrial respirator applications.

Key Features & Benefits

OEM-Approved for All Major RPB® Respirators

• Only coupler officially approved for:

  • NOVA 3®

  • NOVA 2000®

  • ASTRO®

• Ensures proper fit, sealing, and safety compliance

Enhanced Dust Seal

• Upgraded internal dust-resistant design

• Protects airflow pathways from contaminants

• Ideal for abrasive blasting and high-particulate environments

1/4" Quick Release System

• Fast, secure connection between airline and respirator

• Prevents accidental disconnection under vibration or movement

• Designed for high-pressure, continuous-flow air systems

Durable Industrial Construction

• Built for rugged daily use

• Resists wear, corrosion, and impact

• Ensures long-term reliability in harsh jobsite conditions

1/4" NPT Female Thread

• Standardized fitting for compatibility with most airline systems

• Easy integration into existing RPB® approved setups

OEM Cross-Reference