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Brass coupling with NPT and GHT threads

Legend Valve

Legend Valve 322-510 921 NPT x 3/4 GHT coupling

SKU CH-JG9Y-1H6X1

Connects NPT pipe threads to standard garden hose threads for water supply

  • Connects NPT pipe to garden hose thread with the 322-510 921 fitting
  • Brass construction resists corrosion for durable plumbing connections
  • Fire hose fitting design handles high-pressure water applications
  • Meets California Proposition 65 requirements with chemical disclosure
  • New condition ensures reliable performance from first installation

Product identification

The Legend Valve 322-510 921 is a brass coupling that joins a 921 NPT thread to a 3/4 GHT connection. It is intended for installers who need to adapt fire hose fittings to standard garden hose threads in plumbing or irrigation work.

Thread compatibility limits

The fitting bridges two different thread standards, so it only works where both the NPT and GHT specifications match the stated sizes. Mismatched diameters, damaged threads or pressure ratings beyond the coupling's design will prevent a reliable seal.

Capacity and headroom

The coupling handles typical residential water pressures encountered in garden hose and fire hose applications. It is not suited for high-pressure industrial systems, hydraulic circuits or any service that exceeds the pressure class implied by the standard NPT and GHT dimensions.

Highlights

  • Connects NPT pipe to garden hose thread with the 322-510 921 fitting
  • Brass construction resists corrosion for durable plumbing connections
  • Fire hose fitting design handles high-pressure water applications
  • Meets California Proposition 65 requirements with chemical disclosure
  • New condition ensures reliable performance from first installation

Specifications

BrandLEGEND VALVE

Questions about this item

Which Legend Valve coupling matches the 322-510 part number?

The 322-510 model is the A921 NPT by 3/4 GHT fire hose fitting listed in the product title.

What does the A921 NPT by 3/4 GHT designation mean when installed?

It connects a male NPT pipe thread on one side to a standard 3/4 inch garden hose thread on the other for fire hose use.

How do the NPT and GHT threads affect compatibility with other fittings?

NPT threads seal with taper engagement while GHT uses a gasket, so each side requires the matching thread type to prevent leaks.

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