I received this yesterday and used it last night.  I mounted it on the Orbit metal ring sprinkler base #58030. The sprinkler worked just fine.  I ran it for about 2 1/2 hours and put down about 1 inch of water.  I was happy with this amount of water in that period of time based on all my many past and different types of sprinklers I've had over the 35 years.  I can't imagine this sprinkler not working for many many many years.  My last one lasted about 30 years. No joke!  Actually had two of them.  A metal like this one and a plastic.  The plastic one last about 20 years.  I do not leave them out in the sun however and may be the reason they lasted for so long.  I refer the metal one as it's more versatile.  It'll do what the plastic one does meaning it'll spread out a good amount of water for about 15-20 feet plus it'll allow you to water beyond that range for another 10 -15 feet.  The only time I'd buy a plastic again is if I only wanted to water a small area.