Aqualine FP-HA25F75H Brass Fire Adapter 2.5 in Fnst X 0.75 in Mht

Product Description

The AQUALINE FP-HA25F75H is a brass fire adapter designed to transition between a 2.5-inch Female National Standard Thread (FNST) inlet and a 0.75-inch Male Hose Thread (MHT) outlet. This fitting is used in fire protection and water supply applications where a standardized threaded connection is required between hydrant outlets, standpipe systems, or portable firefighting equipment and hose lines. Constructed from solid brass, it offers reliable corrosion resistance and durability under working pressure conditions. Licensed plumbers, fire protection contractors, and municipal water supply technicians are the primary installers of this adapter.

This adapter is suited for use in residential, commercial, and municipal fire protection systems where a 2.5-inch FNST supply port needs to be reduced or adapted to a 0.75-inch MHT connection point. Typical applications include fire hydrant outlet connections, hose bib adaptations, and standpipe access fittings. It is appropriate for use with garden-thread-compatible hose fittings and standard fire department hydrant outlets.

Key Features

• Brass construction provides corrosion resistance and long service life
• 2.5-inch FNST inlet conforms to National Standard Thread for fire hose connections
• 0.75-inch MHT outlet is compatible with standard male hose thread fittings
• Compact adapter design for quick installation in tight access areas
• Weighs 1.08 pounds for straightforward single-technician handling

Compatibility

Designed as an OEM-style replacement adapter for fire protection and water supply systems requiring a 2.5-inch FNST to 0.75-inch MHT threaded transition.

Installation Notes

Installation should be performed by a licensed plumber or qualified fire protection technician in accordance with applicable local codes and NFPA standards. Shut off the water supply and depressurize the line before removing or installing any threaded fitting. Use appropriate thread sealant or thread tape rated for potable water or fire protection service on all threaded connections. Do not over-tighten; hand-tighten and then snug with a wrench to avoid thread damage on the brass fittings.

Technical Specifications

• Inlet Connection: 2.5 inches FNST (Female National Standard Thread)
• Outlet Connection: 0.75 inches MHT (Male Hose Thread)
• Material: Brass
• Weight: 1.08 pounds

Standard Information

• Brand: AQUALINE
• Manufacturer Part Number: FP-HA25F75H