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Brass reducing coupling fitting with press connection, 4 by 2-1/2 inches

Legend Valve

Legend Valve 450-448P 4x2-1/2 Reducing Coupling Fitting x Press

SKU CH-419C-S398F

A 4-inch by 2-1/2-inch reducing coupling joins pipes of different diameters using a press connection

  • Reducing coupling joins 4 inch and 2-1/2 inch piping
  • Fitting-by-press design speeds installation without threading
  • New condition ensures reliable performance from first use
  • Legend Valve brand backs consistent manufacturing quality
  • California Proposition 65 warning discloses chemical hazard awareness

4-inch by 2-1/2-inch reducing coupling

This Legend Valve fitting connects a four-inch pipe to a two-and-a-half-inch pipe using a press-ready connection. It is intended for installers who need a direct reduction without threading or soldering. The fitting suits commercial and residential plumbing systems that use press technology. No additional adapters are required for the size transition.

Press connection practical limits

The press joint requires a compatible press tool and jaw set matched to the fitting profile. Installation must follow the tool manufacturer's calibration and spacing guidelines to achieve a reliable seal. The fitting cannot be used with push-fit, compression or threaded pipe ends. System pressure and temperature ratings depend on the pipe material and the press tool verification.

Build quality and daily implications

The fitting body is manufactured by Legend Valve and carries a California Proposition 65 warning for chemicals linked to cancer and reproductive harm. Installers should wear appropriate protective equipment when handling and pressing the fitting. The press-end design allows fast, flameless installation in confined spaces where open flame is restricted. Once pressed, the joint is permanent and not intended for disassembly or reuse.

How it compares

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

Price $131.99
Pricier than about 72% of the 720 comparable items (median $47.49).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

How do I choose between the 450 and 448 versions of this reducing coupling?

The model 450-448P identifies a single fitting; the numbers are part of one part code, not separate versions to select between.

What does the 4x2-1/2 sizing mean when the coupling is installed in a piping system?

It connects a 4-inch fitting end to a 2-1/2-inch large press end, reducing the line size at that joint.

Which press standard does the large press end follow, and what pipe sizes does it accommodate?

The large press end is made for 2-1/2-inch press-compatible pipe; the specific press standard is not identified in the product information.

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