Used Aqua Enviroment reducing regulator 6000 input, 0 to 5000 output.
Used Aqua Environment reducing regulator, model 415-5000. Maximum input is 6000 psi. pressure is adjustable from 0 to 5000 psi. I tested it this morning and it worked great. Gauges are liquid filled. No leaks. No reg creep. Good overall condition. Thanks