Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Is the description of this rod containing a resistor correct? (I don't see one in the photo of the hex head) thank you...
Document: Here is Rheem water heater parts guide[...] OK. Amazon doesn't allow me to post Rheem link. You will have to Google "rheem water heater parts guide" yourself.Click "Water Heater Parts Guide (US Only)" you will see the guide in pdf format. See page 6 Anode rods. There are only a few options.Magnesium is healthier to human body than Aluminum. But Magnesium sacrificed (consumed) faster than Aluminum. R Tech Resistor addresses this issue.
Wrapped a new one with few rounds of Teflon tape then tightened it with regular wrench. Everything went fine, no water leak. I plan to replace a new anode rod every 5 years. Hopefully, I remember this. I strongly recommend to use power (air or electric) impact wrench to remove the old rod, much easier than an elbow-grease wrench. The whole process was around 15 minutes.Small complain: the label is hard to remove because of sticky glue that they use!!!!
The part I disliked most about this anode rod is that it had a 4&#34; long sticker wrapped around the rod. It's a heavy duty sticker that probably would take some serious doing to get it off. I left it on but did not like the idea of having it on there. Not sure how it'll disintegrate etc..No mention anywhere on the packaging of Rheem. I thought this was an OEM part?Diameter and length as promised.
I purchased this for my 20+ year old Rheem water heater and to my surprise it actually fit! However, it was very difficult to get the old anode rod out of my tank. I needed to buy a 5ft steel pipe to put over my ratchet to get enough leverage to finally get the original rod free. Two weeks later, I ended up replacing my water heater because it was 20+ years old.
I've decided to replace my anode with magnesium instead of the original aluminum. This fits into a 50 gal tank. The sticker was a chore to peel. So I sprayed Gum Out on it and it peeled off nicely! No local big store carries this product as you know. They don't want you to service your water heater tank. I tried asking someone it there and they don't know what I'm talking about. FYI: if you own a water softener system, your anode rod will corrode much faster.
I brought this item to replace the magnesium anode rod in the 40-gallon GE water heater. Preparation steps, turn temperature control to "Pilot" setting, turn off cold water supply, drain around 5 gallons of water of the water heater. I then removed the 5-year old anode rod in the water heater using the electric impact wrench (Milwaukee, model 9072-20) with a 1-1/16 inch socket. It only took a few seconds.
it was the right tool for the job of replacing your anode rod in your water heater every couple of years.
They should use a little less sticky glue. Remove the label and all the glue first before taking out the old rod. That will make things go faster.
If there is very little clearance above your heater, this the choice.I have 42V50. I just cut 5 inches from bottom of SP11309C to workaround the above-heater clearance issue.
I used a 1/2&#34; t bar drive wrench with a 1 1/16 socket and a 3' persuader to loosen the existing anode. I had to cut 6&#34; off the new  anode to fit in the 40 gallon short tank. All is good.
Answer: yes