Save Your Back, Buy Aluminum 
I've used one of these for 15 years and never worn it out. I used mine to assemble and disassemble (much harder) 1-1/2" and 2" pipe on chemical loading systems. I've used a "cheater" on this wrench (not recommended, use a longer wrench) and did not bend it. I have seen one that was bent and the only way that could have happened was if a 3-4' cheater was used on it.The difference in weight from the cast iron model is significant. The difference in price amounts to about one visit to the chiropractor - buying the aluminum one is a no brainer if you look at it that way! This gets more apparent as the size of the wrench increases.
Rigid is the industry standard for pipe wrenches. Hundreds of thousands of users can't be wrong!
Over priced 
The link on Google says this wrench costs $68. When you get here, it is $90. It is available elsewhere for less.
Great wrench!
This wrench is just as good as any other wrench... even better because of how light it is! I would much rather use this wrench than an iron one! It is totally worth the price!
