Just putting this out there. I have 28 Hydra-Flex Blast-Tec Pro 324 No. 6.0 Rotating Nozzle - 1/4in. BSPP which are 3gpm. My pump is 35.4 gpm, which is causing pressure related problems. I need to downgrade to a 4.0 nozzles, which are 2gpm. Given the cost of 28 nozzles just thought I would post this in case someone was looking to upgrade and wanted a trade (Less than 2000 washes on them) or had a some to sell.