Review on Skywalker SKY32812 Double Mount SKY 32812 by Darrell Beecher

I used this pair to attach a 10 foot length of 1-3/4 inch OD steel pipe that will be used as the mast for my weather station to the gable of a storage room. very durable and easily handles this duct size (compared to what the product description says). I wish they did them in 1" increments as a 5" spacing would be great. As it is, I laid 3/4 inch thick strips ripped from the 2x4 underneath to get the extra clearance I needed to get past the roof overhang. They're probably a bit overpriced for what you get (you might find them cheaper elsewhere but no shipping), but they're well made.