ams511
Contributor
The problem is if the OP buys used regs he could certainly be looking at $150 for service. If you buy some ebay set that has internal corrosion problems because someone blew saltwater in it when trying to dry off the cap and then stored it for 3 years in the basement. Also diaphragms and mouthpieces will normally need to be replaced also. I live in Miami and the going rate is between $20-35 a stage plus parts. I am starting to learn how to service my own regulators myself.