Rebuilt nozzle inspired by the one I remixed here, optimized for max water throughput with a 1" hose. Hose adapter with thread is used here and the nozzle screwed on it interchangeable. I also used a 19mm O-ring inside. On the picture you see a 6 bar pump is used.
The thread works for me using PETG, but it's quite tight. You might want to upsize it a bit.
1inch_threaded_hose_nozzle_wide.stl | 1.6MB |