We are in the process of purchasing new nozzle's. Are sales person has quoated us with Akron Assualt model 4720 or 4820. We have used TFT for the last 14 years and are ready to upgrade to new nozzle's. Trying to find any information on the Akron nozzles. We love the TFT but are sales person said the prices will be double what the akron's are.