I found this forum while looking for info on Rain-Jet heads. I have 3 in my front lawn, 1 big one (25-30 feet coverage) and 2 small ones. My problem is the first big one lasted about 20 years or more, when it finally broke, it's 2 replacements lasted a year or so each. Now I need to find a head that I can use to replace it, that will match the output of the 2 smaller Rain-Jet heads. I tried one of the rotary heads that puts out a single stream, but that just wasn't enough water. I've been getting by, by making my own head from the Rain-Jet insert from a broken head, and screwing it right into a pvc coupling, but when it goes off late at night, when everything sounds louder, it causes some vibrations that sound like a prop plane revving up I really would like to advoid digging up the lawn, and starting over with a more conventional Champion type system, so is there any kind of head that can replace the big Rain-Jet?