We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four transparent copper couplings with stop dimple

Legend Valve

Legend Valve 450-641 4 Couplings w/Stop Dimple bathware

SKU CH-6DTD-FQNFT

Four copper couplings with stop dimples for connecting 4-inch inside-diameter pipes in bathware installations

  • ColorTransparent
  • Size4" x 4-1/8"
  • TypePipes, Valves & Fittings
  • Copper coupling with stop dimple ensures secure solder joints
  • 4-inch inner diameter fits standard plumbing installations
  • 4-1/8-inch outer diameter provides reliable pipe connections
  • C x C configuration simplifies copper-to-copper installations
  • New condition guarantees unused factory-quality components

Legend Valve 450-641 Copper Couplings

This set includes four copper couplings with an internal stop dimple, sized at 4 inches ID and 4-1/8 inches OD for C x C connections. They are supplied new and are intended for joining copper pipe in plumbing installations. The transparent finish allows visual inspection of the joint during assembly.

Suitable for plumbers joining 4 inch copper lines

These fittings suit installers who need a positive stop to centre the pipe within the coupling. They are not for users requiring a different nominal size, a slip coupling without a stop, or a material other than copper. The Proposition 65 notice also means they are not appropriate for projects that must avoid the listed chemicals.

Handles standard 4 inch copper pipe runs

Each coupling accommodates the stated 4 inch ID and 4-1/8 inch OD dimensions, providing a reliable joint for typical residential or light commercial water lines. Headroom ends where the pipe diameter changes, where a stop dimple would interfere with the layout, or where local code demands a fitting without the Proposition 65 chemicals.

Highlights

  • Copper coupling with stop dimple ensures secure solder joints
  • 4-inch inner diameter fits standard plumbing installations
  • 4-1/8-inch outer diameter provides reliable pipe connections
  • C x C configuration simplifies copper-to-copper installations
  • New condition guarantees unused factory-quality components

Specifications

BrandLEGEND VALVE
ColorTransparent
Size4" x 4-1/8"
TypePipes, Valves & Fittings

Questions about this item

What copper pipe sizes does the 450-641 coupling connect?

The 450-641 coupling joins 4" inside-diameter copper pipe to 4-1/8" outside-diameter copper pipe using a C x C sweat connection.

Will the stop dimple on these couplings interfere with existing copper piping during installation?

The stop dimple acts as a depth guide so the pipe seats fully; it does not obstruct flow and works with standard copper tubing you already have in place.

How can I verify the couplings are seated correctly after soldering?

After soldering, inspect each joint for a continuous fillet of solder around the full circumference and confirm the pipe ends rest against the internal stop dimple.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.