- Messages
- 17,524
- Reaction score
- 9,765
- Location
- Somewhere between here and there
- # of dives
- 2500 - 4999
Or you could buy the parts to covert your US4 (?) to a DS4, you'll need 4 parts and one of those comes in a service kit. Why not just buy the parts to convert your 20 to a 40 or 50 and your US4 to DS4? Cheaper than a new reg set. I've done this conversion several times, only issue is what you'll get charged for the parts but still way cheaper than a new reg set.