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3/4 in. Compression x 3/4 in. NPT Solid Brass Union

  • Ideal for use with 3/4 in. x 3/4 in. evaporative cooler pipes
  • Made from high-quality brass for durability
  • Comes with an O-ring to fit most wrenches
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Frequently Bought Together


Product Overview

Camco's 3/4 in. x 3/4 in. compression fitting is used to create a watertight connection between a pipe and fitting and an evaporative cooler. It is easy to install without the need for solder or adhesives. It is constructed of durable brass and includes an o-ring to fit most standard wrenches. CSA low lead content certified. Complies with California's AB1953 and Vermont Act 193 Low Lead Laws.
  • 3/4 in. x 3/4 in. fitting
  • Compatible with most evaporative cooler pipes measuring 3/4 in. x 3/4 in.
  • Brass finish
  • 1 year limited warranty

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Water Supply
Compatible Brand/Model
Finish Family
Bronze/Copper Metallic
For Use With
Electric Tank,Electric Tankless,Gas Tank,Gas Tankless
Solid Brass
Pack Size
Product Type
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
1 Year Limited

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 3.3
    out of 4 reviews
  • 0% recommend this product
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Showing 1-4 of 4 reviews
  • Verified Purchase
Excellent quality, I would definitely purchase this companys' products again....
Excellent quality, I would definitely purchase this companys' products again.
by Kevin
  • Verified Purchase
Not good for potable water line. watch out!
Not good for potable water line. watch out! contains lead.
by Oscar
    Misleading ad, No Prop65 warning on website
    I bought this because it bragged about all this compliance. But none of that is labeled on the package, and there is a CAProp65 label on the package along with some legal stuff, none of that is mentioned on this webpage..... I'm returning this. I will give it credit for being a lighter color brass and easier to clean than brasscraft's 3/4 inch hex nipples for their copper corrugated water heater connectors.... however I refuse to use this. I heard when they make brass parts, lead likes to come up to the surface. So even if it's a low lead brass part, it could potentially be covered in all the lead it contains.
    by PK
      1 person found this helpful
      Showing 1-4 of 4 reviews