First stage chart

[NOR-CAL DIVE EMT]

Manufacturer: Apeks Marine Equipment Ltd.
Model: Black Pearl (ATX200)
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: No
Number 3/8" LP ports: 3
Number 1/2" LP ports: 1
Number 7/16" HP ports: 2
Available in Yoke: Yes
Available in DIN: Yes
Enviro sealed: Yes

 

[Brandon]

Manufacturer: Zeagle
Model: Flathead VI
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: No
Number 3/8" LP ports: 4
Number 1/2" LP ports: 0
Number 7/16" HP ports: 2
Available in Yoke: Yes
Available in DIN: Yes
Enviro sealed: Yes

 

[Curly]

Manufacturer: Aqualung
Model: Cousteau
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: No
Number 3/8" LP ports: 4
Number 1/2" LP ports: 0
Number 7/16" HP ports: 2
Available in Yoke: Yes
Available in DIN: Yes (kit)
Enviro sealed: Yes

 

[jbichsel]

Reg 1:

Manufacturer: AquaLung
Model: Legend LX
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced ("over balanced")
Swivel Turret: no
Number of 3/8" LPs: 4
Number of 1/2" LPs: 0
Number of HPs: 2
Yoke: yes
DIN: yes
Environ seal: Yes

Reg 2:

Manufacturer: AquaLung
Model: Legend LX
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced ("over balanced")
Swivel Turret: no
Number of 3/8" LPs: 4
Number of 1/2" LPs: 0
Number of HPs: 2
Yoke: yes
DIN: yes
Environ seal: Yes

Reg 3:

Manufacturer: AquaLung
Model: Titan Micra Adj
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: no
Number of 3/8" LPs: 4
Number of 1/2" LPs: 0
Number of HPs: 1
Yoke: yes
DIN: yes (adapter)
Environ seal: No

 

[xiSkiGuy]

Manufacturer: Scubapro
Model: MK11
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: No
Number 3/8" LP ports: 4
Number 1/2" LP ports: 0
Number 7/16" HP ports: 2
Available in Yoke: Yes
Available in DIN: Yes
Enviro sealed: No

 

[loosebits]

Manufacturer: Salvo
Model: SR1
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: No
Number 3/8" LP ports: 4
Number 1/2" LP ports: 0
Number 7/16" HP ports: 2
Available in Yoke: No
Available in DIN: Yes
Enviro sealed: Yes

Manufacturer: Salvo
Model: SR2
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: Yes
Number 3/8" LP ports: 4
Number 1/2" LP ports: 0
Number 7/16" HP ports: 2
Available in Yoke: No
Available in DIN: Yes
Enviro sealed: Yes

Manufacturer: Salvo
Model: Agrgon First Stage
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Unbalanced
Swivel Turret: No
Number 3/8" LP ports: 2
Number 1/2" LP ports: 0
Number 7/16" HP ports: 0
Available in Yoke: No
Available in DIN: Yes (200 bar)
Enviro sealed: No

 

[Stu S.]

Oceanic FDX-10

--------------------------------------------------------------------------------

Manufacturer: Healthways
Model: Scuba Star
Diaphragm/Piston: Piston
Balanced/Unbalanced: Unbalanced
Swivel Turret: No
Number 3/8" LP ports:2
Number 1/2" LP ports: 0
Number 7/16" HP ports: 0
Available in Yoke: Yes
Available in DIN: No
Enviro sealed: No

Has 3/8" HP Port

 

[CODMAN]

Manufacturer: Mares
Model: V16
Diaphragm/Piston: Diaphragm
Balanced/Unbalanced: Balanced
Swivel Turret: No
Number 3/8" LP ports: 4
Number 1/2" LP ports: 0
Number 7/16" HP ports: 2
Available in Yoke: Yes
Available in DIN: adaptor available
Enviro sealed: No

 

[sandersondiver]

It's not a kit per say but the balancing oriface and washers from the Magnum.

Balanced, in it's unique way...high performance....No....OK for recreational diving yes.

If I remember right, I believe they are called belville washers. They are concave and act as a spring.

 

[hamsiss]

Any enviro sealed balanced piston except Sherwood?