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Copper reducing adapter with threaded female end

Legend Valve

Legend Valve 450-737 Copper Reducing Adapter 1-1/4 x 1 C x FNPT

SKU CH-HZ8W-Q62YR

Copper reducing adapter connects 1-1/4 inch to 1 inch C x FNPT fittings

  • Size1-1/4 in × 1 in
  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Reduces pipe diameter from 1-1/4" to 1" for flexible plumbing connections
  • Copper construction resists corrosion and handles hot or cold water lines
  • Female NPT threads allow direct connection to standard threaded fittings
  • Lead-free compliant alloy meets California Proposition 65 safety requirements
  • Compact adapter design fits tight spaces in residential or commercial installations

What this adapter connects

The Legend Valve 450-737 is a copper reducing adapter that joins a 1-1/4 inch copper pipe to a 1 inch female NPT thread. It suits plumbers and homeowners who need to transition between those two sizes in water supply lines. The fitting is new and carries the Legend Valve brand.

What to verify before ordering

Confirm that the existing copper line measures 1-1/4 inch inside diameter and that the mating component has a 1 inch female NPT connection. Check local plumbing codes for any restrictions on copper-to-threaded joints in the intended application. The product includes a Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Behaviour under sustained pressure

Copper construction resists corrosion and handles continuous water pressure without degrading like plastic alternatives can. The solder-cup end creates a permanent, leak-resistant joint when properly sweated, while the threaded end allows future disassembly if needed. No moving parts mean performance stays consistent over the life of the installation.

How it compares

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

Price $26.99
Cheaper than about 63% 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

What comes in the box with the Legend Valve 450-737 adapter?

The package contains the copper reducing adapter with 1-1/4" x 1" sizing. Pipe sections, solder, flux and thread sealant are sold separately.

How do I know this 1-1/4" x 1" reducing adapter is the correct version for my job?

Match the 1-1/4" x 1" C x FNPT specification to your pipe and fitting dimensions; the model number 450-737 confirms the exact configuration.

What does the California Proposition 65 notice mean for daily use of this fitting?

The warning indicates the product contains a chemical known to California to cause cancer and reproductive harm; follow standard plumbing safety practices when handling.

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