Midland Industries 444103 Double Female Swivel Adapter Brass

Product Description

The MIDLAND INDUSTRIES 444103 is a double female swivel adapter designed for fire hose connections. It joins two male NST threaded hose ends using a 2-1/2 in Female NST connection on each side, with a swivel mechanism that allows rotation during coupling to prevent hose twist and thread cross-threading. Constructed from brass, this adapter provides corrosion resistance and durability under the demanding conditions of fire suppression work. It is installed by fire service personnel, industrial safety crews, and plumbing contractors working with fire protection systems.

This adapter is used wherever two fire hoses or fire suppression system components with male NST threads need to be joined end-to-end. The 2-1/2 in NST size is standard for commercial and industrial fire hose applications. Typical installation scenarios include fire department connections, standpipe systems, and industrial fire suppression setups where a female-to-female coupling is required to reverse hose flow direction or extend a run.

Key Features

• Double female swivel configuration allows connection of two male NST threaded fittings or hose ends
• 2-1/2 in Female NST on both sides matches standard commercial fire hose sizing
• Swivel design reduces hose twist and simplifies coupling under pressure or in confined spaces
• Brass construction resists corrosion in wet and outdoor environments
• Designed specifically for fire hose applications

Compatibility

Designed for use with fire hose assemblies and fire suppression system components featuring 2-1/2 in male NST threaded connections.

Installation Notes

This fitting is installed by fire protection contractors, industrial safety technicians, or licensed plumbers working on fire suppression systems. Depressurize and drain the hose line completely before installing or removing any fire hose fitting. Hand-tighten NST swivel connections first, then use a spanner wrench to snug the fitting without over-torquing the swivel collar. Work performed on fixed fire suppression systems should comply with applicable NFPA standards and local authority having jurisdiction requirements.