Atomic Aquatics ST1 Swivel Sealed Regulator, DIN Open Box

Quick answer: This is a regulator accessory from Atomic Aquatics. This is an open-box unit, so condition and included parts can differ from new. Check the listing details, and note that open-box stock is usually a single unit that sells quickly.

Why it's worth a look

Hoses, adapters and mouthpieces are where a breathing setup gets dialed in. The right hose length and routing can make your rig noticeably more comfortable across a bigger frame.

Specs

• Brand: Atomic Aquatics
• 1st Stage Type: Balanced Flow-Through Piston
• LP Ports: Five 3/8" Ports
• HP Ports: Two 7/16" Ports
• Adjustable 2'nd Stage: Yes, Flow Control Knob
• Nitrox Compatible: Yes, Up to 40%
• 2'nd Stage Type: Pneumatically-Balanced
• Regulator Materials: First-Stage: Chrome Plated Brass & 316-Grade Stainless Steel Second-Stage: Demand Valve Body, Lever & Sealing Orifice Titanium
• Hose Thread: 3/8"

Before you buy

Confirm thread size, port type and compatibility with your regulator. Anything that connects to life-support equipment should be installed and checked by a qualified technician. Read Best Scuba Mouthpieces for Comfort and Control. More options: Regulators.