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STZ Industries 4 in. FIP each X 4 in. D FIP Galvanized Malleable Iron Coupling
STZ Industries 4 in. FIP each X 4 in. D FIP Galvanized Malleable Iron Coupling

STZ Industries 4 in. FIP each X 4 in. D FIP Galvanized Malleable Iron Coupling

Joins two 4-inch threaded pipe ends with a rugged, lead-free malleable iron build rated to 300 PSI.
Stz Industries MPN 351CO-4
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 Stz Industries 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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About Product Overview

This 4-inch galvanized coupling joins two threaded pipe ends into a straight, leak-tight run. Built from malleable iron with a galvanized finish, it stands up to the corrosion and wear that comes with everyday plumbing and heating work. Both ends are FIP (female iron pipe) threads, so it connects directly to male-threaded pipe without extra adapters.

  • 4" FIP x 4" FIP connection
  • Malleable iron construction, galvanized finish
  • Lead-free
  • Rated to 300 PSI / 150°F maximum

The Details Specifications

Brand Stz Industries
Model / MPN 351CO-4
UPC 019442033828
Weight 6 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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