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NIBCO 1/2 in. Sweat X 1/4 in. D Sweat Copper Reducing Coupling

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Steps a 1/2" copper line down to 1/4" with sweat joints rated for underground use up to 722 PSI.
Nibco MPN W00725D
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Nibco item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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Why isn't this online? The whole story →

About Product Overview

This NIBCO reducing coupling steps a 1/2" copper line down to 1/4" using standard sweat connections on both ends, letting you tie smaller-diameter runs into an existing supply line without reworking the whole system. It's rated for underground use and handles working pressure up to 722 PSI and temperatures up to 400°F, so it holds up on both potable water and heating applications. Made from lead-free copper and NSF listed, it's a solid choice anywhere code requires certified fittings.

  • End 1: 1/2" sweat (copper)
  • End 2: 1/4" sweat (copper)
  • Max working pressure: 722 PSI
  • Max working temperature: 400°F
  • Lead-free copper, NSF listed, underground rated

The Details Specifications

Brand Nibco
Model / MPN W00725D
UPC 039923037190
Weight Under 1 lb
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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