Best Scuba Regulators Under $500 I've watched too many new divers waste money on junk regulators because they believed the most expensive models were the only safe choice. Here's the truth I've learned over forty years: some of the best scuba regulators under 500 dollars will serve you just as reliably as models costing twice that amount—if you know what to look for. The $300-$500 range is where value meets performance, and after testing dozens of mid-range regulators in everything from murky Gulf wrecks to clear Atlantic reefs, I can tell you exactly which ones deserve your money. The winner in this price bracket? The Cressi MC9 SC Compact, which delivers balanced performance, cold-water reliability, and a service network that won't leave you stranded. But your diving style matters more than any single "best" pick, and I've got recommendations ...