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The Mueller Industries A11426NL is a reliable union fitting designed for copper solder-joint applications. This product features a female solder x FNPT configuration, suitable for connecting pipes in pressure systems. The lead-free design enhances safety in potable water applications.
Mueller Industries has been a trusted name in the plumbing industry for over 80 years, known for its high-quality copper fittings.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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