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Store SKU #103721

3/4 in. Black Iron Union

  • For use with non-potable water sources
  • Rated for up to 300 maximum PSI
  • For above ground use only
  • See More Details

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Product Overview

Handle your home's gas pipe needs with STZ pipe fittings. This 3/4 in. black iron union is made for use with non-potable water sources. It is rated to withstand pressures of up to 300 PSI and is 100% factory tested. Above ground use only. Fittings, nipples, and pipe come in an array of sizes to meet your home's gas, air, and LP needs.
  • 100% pressure tested at the factory
  • Rated at maximum 300 psi at 150 degrees F or 150 psi at 300 degrees F
  • Not for use with potable drinking water
  • UL and FM listed
  • Use for above ground gas, LP and air applications
  • Always check your local plumbing and gas codes before starting any piping projects
  • Not for use in underground applications
  • Can also be used for DIY pipe projects, pipe preparation materials not included
  • IPS threads for compatibility with other project materials such as lamp parts, valves, etcetera
  • Note: product may vary by store
  • California residents

Info & Guides

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Fitting 1 size3/4"3/4"1"1-1/2"
Fitting or Connector TypeElbowUnionUnionUnion
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Fitting/ Connector CollectionBlackBlackBlackBlack
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Specifications

Dimensions

Double Fitting Size
3/4" x 3/4"
Fitting 1 size
3/4"
Fitting 2 size
3/4"
Product Length (in.)
2 in

Details

Application
Air,Furniture Grade,Natural Gas,Propane
Color Family
Black
Color/Finish
Black
Compatible Pipe Material
Black malleable iron
Connection 1
FPT
Connection 2
FPT
Connectivity
Threaded
Features
Threaded
Fitting or Connector Type
Union
Fitting/ Connector Collection
Black
Material
Iron
Maximum working pressure (psi)
300
Maximum Working Temperature (F)
300
Pack Size
1
Pipe or Fitting Product Type
Fittings & Connectors
Product Weight (lb.)
2.5 lb
Reducing Fitting
No
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
1 Year Limited

Questions & Answers

2Questions3Answers

Is this a "ground joint" union?

Asked by Vlad February 1, 2019
2
Answers

Yes. But unions should to be exposed. You should not cover it up in a wall, or ceiling.

I have a 1 9/16 union what wood I need for the inside pipe be that wood fit

Asked by Frank January 13, 2019
1
Answer

I am not sure what kind of pipe you are using. Usually gas lines are measured by the inside diameter of the opening. Sizes are usually 1/2", 3/4", 1". It sounds like you may have a 1/2" line there, which would need a 1/2" union. Just keep in mind that unions should always be exposed so you have access to them.

Customer Reviews

  • 4.6
    out of 74 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 74 reviews
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Good product. Working as expected....
Good product. Working as expected.
by MichaelD
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
No leakage. worked perfectly...
No leakage. worked perfectly
by HomeDepotCustomer
Great for those “meant to be” unions....
Great for those “meant to be” unions.
by Kenny
Did the job that was required, without a hitch....
Did the job that was required, without a hitch.
by bob
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
this is, by far, the best black iron union ever...
this is, by far, the best black iron union ever created. its black, its a union, it doesn't disappoint. if you need a union, i suggest you try this. it looks like a union, it acts like a union. its a
by HomeDepotCustomer
This device is easy to install and it is very resistant, very good construction material
This device is easy to install and it is very resistant, very good construction material
by Samuel
Showing 1-10 of 74 reviews