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Brass press-to-FNPT reducing adapter with Legend Valve marking

Legend Valve

Legend Valve 450-739P 1-1/2x1-1/4 Press FNPT Adapter valve

SKU CH-WXWX-SMBVC

Press-to-FNPT reducing adapter connects 1-1/2" press to 1-1/4" female threads

  • Press-to-thread connection simplifies copper pipe installation
  • Reducing 1-1/2 to 1-1/4 inch joins dissimilar pipe sizes
  • FNPT female thread accepts standard NPT male fittings
  • Lead-free brass construction meets potable water safety standards
  • California Prop 65 listed for chemical hazard awareness

Application fit

The Legend Valve 450-739P is a press-to-FNPT reducing adapter that joins a 1-1/2 inch press connection to a 1-1/4 inch female NPT thread. It suits plumbers and maintenance crews who need a secure, leak-resistant transition between dissimilar pipe sizes in water or hydronic systems.

Critical specification

The single detail that confirms fit is the 1-1/2 by 1-1/4 inch press-by-FNPT reducing configuration; mismatching either the press diameter or the thread size will prevent a proper seal.

Sustained service behaviour

Under continuous pressure and thermal cycling the press joint maintains its mechanical grip without loosening, while the FNPT thread holds sealant reliably across temperature swings. The product carries a California Proposition 65 notice for chemicals linked to cancer and reproductive harm.

How it compares

Measured against everything we stock in Plumbing Valves & Valve Assemblies, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 58% of the 720 comparable items (median $47.49).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

What does the 1-1/2" x 1-1/4" press-to-FNPT size mean when I install it?

The adapter joins a 1-1/2 inch press pipe end to a 1-1/4 inch female NPT thread, letting you transition between those two diameters in a single fitting.

How does the press connection work and what does it seal against?

The press end is crimped with a compatible press tool onto the pipe, creating a permanent mechanical seal without solder or thread tape.

What clearance and pipe preparation does this adapter need to fit?

You need straight, clean pipe ends cut to the press-tool manufacturer's insertion depth so the adapter seats fully before crimping.

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