Rainbird High Efficiency Variable Arc Nozzle 12' radius 10 pk

Worked perfectly! Great description and I got the right one out of the gate.

Perfect...

These sprinkler heads appear well-made and work as advertised. The only thing to be aware of (which the manufacturer's website mentions, though not prominently) is that the 12-foot radius is the absolute maximum and that it depends on water pressure, which means that in many situations you will get less. Knowing this, I bought these for an application in which I needed a 10-foot radius and they work adequately. The nozzle specified for a 10-foot radius probably would not have worked in this case. Since the radius can be reduced by adjusting the set screw on top, it's a good idea to "go long" if the area you're trying to cover approaches the specified coverage radius of the nozzle. The variable angle feature is, of course, the main reason to buy this nozzle, and it works very well. There is a line on the top of the nozzle that defines one leg of the angle the spray will cover. You set the other leg (that is, the extent of the angle) by rotating the knurled collar below the spray head. When you install the nozzle, the sprinkler riser will have to be rotated to point the line on top in the direction you want, after which you can set the width of the angle by rotating the collar. Doing these adjustments Is straightforward, but is wet work if the sprinklers are running. If they aren't you'll find the job is a lot easier if you aren't fighting the spring that wants to pull the riser back into the ground. Rainbird has just the tool for that: it's called the "Rainbird PTC1 -- Spray Head Pull Up Tool". Amazon sells it for about $11, and it's well worth the expense. The tool makes it easy to pull the riser out of the ground and clamp it in the extended position while you install the nozzle.

Perfect!

Works great