Aqua Environment Cascade
Photos courtesy Bardstown Fire Department, 4 bank 4500 PSI with two filling stations
211 priority valves on top, 415 regulator to the right, 1018 sequence valves between 211's and bottles
Closeup of 1018 Sequence valves
Closeup of 211 Priority valves and 415 regulator
4 bank, 8 bottle cascade
Compressor to left in blue, white filling station