"all stainless worm gear clamp"
I guess homeowners and cheesy contractors don't have access to those because often times when digging up leaks in poly here in colorado, the culprit is the "radiator" clamp and the rusty bolt that is ruined....
Get the crimp on type, pay the 15 bucks for the crimp tool and be happy!
Sprinkler Solutions, Inc.
Arizona and Colorado
www.sprinklersolutions.net