These Quick TeeJet Vari-Spacing Boom Clamps are for dry boom assemblies.
The boom clamps are intended for Quick Teejet no drip nozzle bodies, they have a square hole where the nozzle body mounts. And can mount on either square tubing or round piping. All models are constructed with plated steel. For the 90 degree clamp click on the link in Related Products.
Available in a range of sizes.
Check the Resources section for a chart regarding these Quick TeeJet Boom Clamps.