These are the singlehose regs that I found until now:

ATM-450
ATM-500
ATM-500A
ATM-500B
ATM-500C
ATM-750
ATM-1000
Hydronaut
Hydronaut II
Hydronaut III
Malibu Diver
Master Diver
Navy Unit
Navy Unit II
Navy Unit III
Orca
Sport Diver
Sport Diver II
Sport Diver III
Sport Diver IV
Sport Diver V
Waterlung
W-100
W-200
W-300J
W-400
W-600
W-900
W-950 Arctic