Question about Protech Rheem/Ruud SP13901B - Anode Rod/Nipple/Heat Trap Assembly - 24 in. lon
There are two types magnesium anode.
1) Hex-head that screws into separate port on top of tank, and comes either 44" long or 12" sausage links.
2) Combo-anode that connects to Hot water nipple, and comes in solid or combo.
Contact guys at following link to purchase anodes
General instructions and types of anodes
Rheem 'preferred parts'
Purpose of resistorized anode is supposedly so magnesium performs as well as aluminum.
Rheem however had 'resistorized elements' years ago, and that turned out to be promotional gimmick so people would buy rheem-brand products.
Posted on Nov 03, 2012
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Posted on Jan 02, 2017
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