Apeks XTX50 Scuba Diving Regulator

✓ Store Display Units, Never Dived · Authorized Apeks Dealer · Full Manufacturer Warranty The regulator half the tech world learned on. Straight out of the showcase, while they last. ⭐ Over 250 verified reviews · Sold and supported by a PADI Tec 50 instructor The XTX50 is the regulator that made Apeks' reputation: a sealed, over-balanced DS4 first stage that doesn't care how cold or deep it gets, and a pneumatically balanced second stage with a venturi lever and a breathing-effort knob so you can tune the breathe to your liking. It's been the default cold-water and drysuit reg for a generation of divers, and the second stage you'll find on the long hose of a lot of technical rigs. These are our showcase units. They've been handled, never dived, and there are only a handful. About these units. They lived in our display case so customers could pick them up and feel the controls. None has ever been on a tank or in the water. They carry the full Apeks manufacturer warranty like any new regulator, and we bench-test each one before it goes out the door. All are yoke, and we're not restocking: when the picker shows sold out, that's the end of the XTX50 at OTA. ❄️ Sealed, Over-Balanced First Stage The DS4 diaphragm is environmentally sealed. Cold water, silt, salt: nothing gets in. 🎛️ Tune the Breathe Venturi lever and cracking-resistance knob on the second stage. Set it the way you like it. 🔄 Reversible, Changeable Hose routes left or right; swap the exhaust tee between large and small. 🛠️ Service Anywhere One of the most widely serviced regulators in the world. Kits and techs everywhere. Why it's still the one we recommend Plenty of regulators breathe well on a bench. The XTX50 breathes well at 130 feet in 48-degree water with a drysuit inflator hanging off the same first stage. A first stage built for the cold Over-balanced means the DS4 delivers slightly higher intermediate pressure as you go deeper, so the second stage keeps breathing easily where other regs start to feel like work. Environmentally sealed means the diaphragm never touches water, which is what stops a first stage from freezing in a Texas spring quarry in February. Four low-pressure ports and one high-pressure port on a swivel turret make hose routing clean. A second stage you can set up your way The pneumatically balanced valve keeps inhalation effort low and even. Flip the venturi lever to "pre-dive" and it won't free-flow on the surface; flip it to "dive" and the breathe opens up. The cracking-resistance knob fine-tunes from there. The housing is reversible for left- or right-hand hose routing, and the diver-changeable exhaust lets you pick the big tee for bubble-free vision or the small one for a lighter reg. Who it's for Divers buying their first serious regulator who want one they won't outgrow. Cold-water and drysuit divers. Anyone building toward technical diving who wants a second stage that will still be on the rig at trimix. And anyone who wants a regulator that any dive shop on earth can service, with parts that will exist for decades. Authorized Dealer Full Apeks manufacturer warranty. Never grey-market. Instructors Who Own the Shop Led by a PADI Master Instructor & Tec 50 diver. Bench-tested and tuned before it ships. Trusted by 250+ Over 250 verified reviews from divers who trust their gear with their lives. ⭐ Staff Favorite "If a student asks me for one regulator that will take them from open water to a drysuit to their first deco dive, I say XTX50 and I don't have to think about it. The sealed first stage has never given me a free-flow in cold water, the second stage tunes exactly how you want it, and every shop I've ever walked into can service it. These spent their lives in our showcase. A few people are going to get a new reg at a used-reg price, and then they're gone." — Morad Hassan, PADI Master Instructor & Tec 50 · OTA Scuba & Swim, Katy TX 💡 Limited display stock. When they're gone, that's it. Full Apeks manufacturer warranty and free US shipping. Want it set up with your SPG or an octo before it ships? Call or text 855-OTA-DIVE (855-682-3483).