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A Y McDonald 5121-141 is a fitting adapter designed for plumbing applications. This octagonal straight adapter connects a flare fitting to a male National Pipe Taper (MNPT). The product features a nominal size of one and one-quarter inches and is constructed from copper for durability.
This adapter is suitable for various plumbing setups, ensuring reliable connections.
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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