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AO Smith 33 3/4 NPT Anode Rod (100109594) offers corrosion protection for water heaters. It effectively replaces part numbers 43817-48 and 9003892005. This anode rod is built to enhance the lifespan of water heaters by minimizing scale and rust. Constructed from durable materials, it ensures long-lasting performance.
Designed for water heaters, this Anode Rod prevents corrosion and extends service life.
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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