You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing

Oceanic GT3 Sport Regulator


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The GT3 adjustable second stage is paired with the SP5 first stage for a good regulator system with a low price. SECOND STAGE The SP-5 First Stage Regulator offers all divers the opportunity to own a top-performing regulator at an unbeatable price. Repeatedly rated as the best in its class, the SP-5 exceeds both Navy Class A and European CE standards. The SP-5 may have been the first regulator you ever used due to its widespread use in rental and resort operations. The SP-5 is a Non-Balanced Flow-By Piston Designed Regulator. This simple yet Fail-Safe Design will deliver air even if there is a first stage failure. Made of Marine Grade Chromed Brass for Durability and Long Life, the SP-5 First Stage has 4 LP Ports and 1 HP Port with 3/8" and 7/16" threads. The GT3 is one of Oceanic`s Easiest Breathing Second Stages. It offers Diver Adjustable VENTURI, which desensitizes the second stage so it won`t free-flow during shore entries or long surface swims. Additionally, the GT3 has Oceanic`s patented Dynamic Adjustment feature. This allows a diver to set a preferred breathing resistance. You won`t have to make the adjustment more than once, the GT3 maintains the setting no matter how deep or how shallow you go. One of Oceanic`s lightest and most compact second stages, the GT3 weighs just 5.8oz (164.43g); the front of the super sturdy ABS/Polycarbonate Housing is only 2.67" (6.8cm) in diameter. Its Lightweight Anatomica

Total Weight 31.8 oz (901.53g)
Comprehensive Owners Manual
2 Year Limited Warranty
NITROX Ready Up to 40%, Out-of-the-Box
b First-Stage /b Oceanic SP5

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