Best Scuba Diving Regulators

You know you’ve found the perfect reg when you barely notice it’s there. Our 2019 scuba diving Gear Guide breaks down the key features and pricing for some of the best scuba diving regulators models on dive shelves so you can find the right reg.

This new version of the XL4 — with a second high-pressure port in the first stage — is designed to provide high performance under demanding conditions. The reg has a tough, overmolded endcap, environmentally protected diaphragm and heat exchanger with a large surface area to resist ice buildup. The lightweight second stage reduces jaw fatigue.

The latest version of the Calypso holds up to its iconic name, with a stylish soft diaphragm cover, a redesigned Venturi control and beefed-up performance. Not changed: The second stage is still light and compact for all-day comfort; the simple design keeps it reliable and easy to maintain; and the price remains as friendly as ever.

This reg offers the latest technology in a classic, timeless design. The first stage delivers consistent intermediate pressure regardless of tank pressure, and the pneumatically balanced second stage has a sleek, low-profile elliptical design for comfort and efficiency. A top-mounted Venturi switch and a metal breathing knob make precision adjustments a snap.

Cressi’s T10-SC balanced diaphragm first stage is environmentally sealed to protect against icing in cold water and contamination in silty water. It features a “T” mechanism that takes up less space while offering better hose routing. Teamed with the Compact Pro second stage, for a reliable air delivery system.

The Dual's technopolymer construction limits weight without sacrificing durability and performance, thanks to a pneumatically assisted design and adjustable breathing rate. The balanced diaphragm 52X first stage supplies gas through four low-pressure and two high-pressure ports, and the pearl chrome finish is durable and attractive.

Mares’ 82X first stage is designed to deal with a wide variety of conditions for divers who are willing to tackle challenges. With two ways to adjust the breathing rate, including the Twin Power System, the model can deliver gas in highly customizable rates, plus its metal construction and Pneumatically Assisted Design make it capable for cold water use.

Designed for max performance, the Ultra second stage offers two ways to customize the breathing rate with Mares’ Twin Power System and Pneumatically Assisted Design, plus an adjustable breathing comfort dial. The compact 82X first stage features angled high-pressure ports and a smart swiveling low-pressure turret for easy hose routing.

The lightweight MK11 diaphragm first stage is a proven, reliable performer. The C370 second stage sports a balanced valve and a new exhaust tee for reduced work of breathing, and a breathing adjustment to fine-tune performance. Put them together and you get smooth, easy breathing in a reg that's also travel-friendly.

You get quality breathing performance in a compact package with the DX200. The first stage is a balanced diaphragm design featuring angled LP ports on a forged brass body with a sand-blasted chrome finish. The balanced second stage lets you adjust the inhalation effort, plus includes a dive/pre-dive lever to prevent freeflows on the surface.