Sparge nozzle?

[noodle]

I'm looking for a sparge nozzle that will flow 5-7 gpm at approx 3 ft diameter. Where do I find something like this?
We currently have a straight sparge arm but it is too low and sits in the grain bed with large beers. We need to come up with a different solution. We need a nozzle that can attach via 3/4" NPT

thanks,

e

[mookdawg]

McMaster-Carr

Check here: http://www.mcmaster.com/#spray-tips/=pd7aom

What size system are you using it on?