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Transparent copper reducing coupling with smooth cylindrical ends and a tapered centre section

Legend Valve

Legend Valve 450-558 4 x 2-1/2 Reducing Coupling

SKU CH-KN0Z-Q0133

A 4-inch by 2-1/2-inch copper reducing coupling joins pipes of different diameters with a sweat connection

  • Size4 in × 2-1/2 in
  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Reduces pipe diameter from 4" to 2-1/2" for flexible plumbing layouts
  • Copper construction resists corrosion and handles high temperatures reliably
  • C x C sweat connection creates permanent leak-free joints when soldered
  • Prop 65 warning discloses regulated chemicals for informed handling
  • Transparent finish allows quick visual inspection of solder flow

4 x 2-1/2 Copper Reducing Coupling

This Legend Valve fitting joins a 4-inch copper pipe to a 2-1/2-inch copper pipe using a C x C sweat connection. The transparent body allows visual confirmation of solder flow during installation. It is manufactured to standard dimensions for residential and commercial plumbing systems. The coupling is supplied new and ready for use.

Suited for plumbers reducing main lines to smaller

Installers who need a straight reduction between the two stated diameters will find this coupling matches the required ID and OD specifications. It is not intended for transitions to different pipe materials, threaded connections, or size combinations other than 4 by 2-1/2 inches. Buyers requiring press-fit or push-fit ends should select an alternative fitting type.

Performs reliably under constant system pressure

Once properly soldered, the joint maintains a permanent seal through thermal cycling and sustained water pressure. The copper construction resists corrosion in potable water applications without degradation over time. The fitting contains a chemical listed under California Proposition 65 as known to cause cancer and reproductive harm, requiring standard handling precautions during installation.

How it compares

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

Price $76.99
Pricier than about 67% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameLEGEND VALVE
Product colorTransparent
Product typePipes, Valves & Fittings
Size & build
Size4 in × 2-1/2 in

Questions about this item

What copper pipe sizes must I already have for this 4" x 2-1/2" reducing coupling to fit?

You need one length of 4-inch nominal copper tube and one length of 2-1/2-inch nominal copper tube; the coupling joins them socket-to-socket.

Will this coupling connect to older copper pipe already in my walls?

Yes, if the existing pipe is standard 4-inch or 2-1/2-inch nominal copper tubing the sockets will accept it without adapters.

How can I verify the joint is sound after soldering?

Pressurise the line and inspect both solder rings for a continuous fillet with no voids or leaks.

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