Got mine at Home Depot. These wrenches are NOT in the plumbing supply area (like strap wrenches are), they are in the tool section where the slip-lock pliers are.
I had an older set of rubber strap wrenches, but they don't grip well, especially when wet (and the rubber is getting wimpy). I only wish they had a bigger copy of this guy, I don't think it works on the largest of my unions.
OH! Looky, I just followed the channellock link above and they have 2 larger sizes! Of course, HD doesn't carry the bigger ones, I'll have to decide if it is worth getting a larger set. They are listed as oil filter wrenches, I didn't even think of using them for that! Shows what a "poolhead" I've become.
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