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Transparent copper reducing adapter with male threaded end

Legend Valve

Legend Valve 450-791 1-1/4" x 1" C x M Adapter bathware

SKU CH-HCYC-YSXT0

Copper reducing adapter connects 1-1/4" copper pipe to 1" male NPT threads

  • Size1-1/4 in × 1 in
  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Reduces pipe size from 1-1/4" to 1" for flexible plumbing layouts
  • Copper construction resists corrosion and handles hot and cold water
  • Male NPT threads create a secure, leak-resistant joint
  • Transparent finish lets you confirm thread engagement during installation
  • Complies with California Proposition 65 chemical disclosure requirements

1-1/4" x 1" Copper Reducing Adapter

This copper reducing adapter connects a 1-1/4 inch copper pipe to a 1 inch male NPT thread. It is designed for plumbing installations requiring a transition between different pipe diameters. The fitting uses a sweat connection on the copper end and a threaded connection on the other. It suits professional plumbers and DIY repairs.

California Proposition 65 chemical warning applies

The product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. This regulatory notice applies to the material composition of the fitting itself. The warning remains valid for the lifespan of the installed component. Handle with standard plumbing safety practices.

Verify pipe diameter and thread type before ordering

Confirm your existing copper pipe has a 1-1/4 inch inside diameter for the sweat connection. Ensure the mating component uses a 1 inch male NPT thread pattern. The adapter reduces the line size, which affects flow characteristics in the system. No additional sealing materials are mentioned in the specifications.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 78% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameLEGEND VALVE
Product colorTransparent
Product typePipes, Valves & Fittings
Size & build
Size1-1/4 in × 1 in

Questions about this item

Does the Legend Valve 450-791 adapter generate any noise, heat or draw power when installed in a plumbing system?

No, this copper reducing adapter is a passive fitting with no moving parts, so it produces no noise, heat or power consumption during continuous use.

What pipe sizes and thread types must already be in place for the 1-1/4" x 1" C x MNPT adapter to connect correctly?

You need a 1-1/4 inch copper pipe for the sweat end and a 1 inch female NPT threaded fitting for the male thread end to make the joint.

Will the 450-791 reducing adapter work alongside older copper piping and standard NPT fittings already in the bathroom?

Yes, it joins 1-1/4 inch copper tube to 1 inch male NPT threads, matching common legacy pipe and fitting dimensions.

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