Cody also has a background in aerospace engineering and neuroscience but really only takes pride in being good at one thing and that is fishing! It comes with a lip shield, which does actually assist in keeping your lips warm(er) in cold water, but if you dont want this, it is quick and simple to remove. A balanced first stage makes it easier to breathe when at deep depths and when the tank pressure is reduced. As for the Octo - it's the base level leg3nd with just the venturi. This is a top-quality regular that is made with brass and titanium components. When using this attachment the scuba tank should be filled to a max pressure of 3,000 psi. Yoke valves have a working pressure up to 232 bar. The regulator has two high-pressure and four medium-pressure ports. CRACKING RESISTANCE:Yes |VENTURI:No|VERDICT:xDeep have carved a solid reputation with their wings, and it continues here. Rsingler noticed a diaphragm issue with his new Mk19's and me being the OCD person wanted him to look at mine. ISO: Scubapro MK25/S600 Regulator, Deep Blue, Titanium Core - Wanted, Aqualung legend LX ACD yoke-to-din conversion from 2010, Apeks MTX-RC (0.9 J/l) vs Scubapro MK25 A700 (0.51 J/l). It is known for easy breathing regardless of depth. When diving the pressure gauge and dive computer should also be secured and not dangling. Nice large purge, comfy mouthpiece, neat first stage and awesome price point. The Atomic Z2 Octopus is the same as the Z2 primary second stage which is a top-quality regulator. It features an oversized purge button, Superflex braided hose, and a chunky knob on the side for adjusting the cracking resistance of the inhalation effort. Some regulators need to be serviced every year and others need to be serviced every few years. Decided on Apeks XL4+. Plus, this regulator only needs to be serviced every 3 years or 300 dives. The regulator had two high-pressure ports and four low-pressure ports. Unbalanced regulators becomes more difficult to breathe from as your tank has less air. And, even lightweight options should feel strong and stable, with no flimsy plastic pieces. Other pro-friendly features include a self-warming second stage (to prevent freezing and keep your lips comfortable) and oversized knobs that are easy to operate while wearing gloves. It has a soft, comfortable mouthpiece, and utilises Mares Fluid Dynamic Deflector, which receives and properly directs the airflow from the Vortex Assisted Design bypass tube to the mouthpiece. It is an environmentally sealed overbalanced diaphragm design, with a heat exchanger wrapped around the HP valve, so perfect for cold-water diving. The first-stage regulator is the part that is screwed onto the scuba tank. It is lightweight, so ideal for travelling divers, but equally coped well with this cold-water test, making it a good all-rounder. The Onyx II blends an environmentally sealed balanced diaphragm brass first stage equipped with two high-pressure ports and five low-pressure ports with a thermoplastic second stage via a flexible braided hose. The comfobite mouthpiece is nice when diving for long periods. The Core Supreme is a decent-looking regulator that delivers a smooth breathe, doesnt break the scales when it comes to weight, and at this price point, represents excellent value for money. So far, so normal. Steel tanks can be rated up to 3500 psi but are commonly filled to 3,300 psi. As we noted with the 150LX last month, the super-comfy mouthpiece, which is soft but has harder inserts in the bite, is very reminiscent of Atomic Aquatics. It is advisable to dive using a backup pressure gauge for redundancy, especially if you are diving in a cold climate. The Oceanic Zeo DIN regulator is an improvement to the EOS which is a popular regulator. If the tank pressure ever falls below around 300 psi the tank should also be visually inspected as seawater could have entered the tank. The second stage is pneumatically balanced and has a compact venturi lever and a shaped purge. Log in or Register now! ScubaPro R195 is a great secondary regulator that acts as the octopus. The only reason it is number three is that it is more expensive than the regulators above. The Dual Adj is made from an ultralight technopolymer, which is abrasion resistant but extremely lightweight, making it ideal for cold-water use, but also for travel. It is not a balanced system and does not have a high heat transfer rate for cold water diving. The D420 is reminiscent of previous D-regs, with its unusual shape of second stage. There are 2 other comparably priced regs you might look at: MK25/G250V, and the Apeks XTX100. An oversized cap and heat exchanging fins improve anti-freeze properties. The second stage is also pneumatically balanced. But, this can make them slightly more prone to freeflow. This third-generation model is no different. It is equipped with Scubapros X-TIS (Extended Thermal Insulating System), which fully insulates the international mechanism from the environment. The first stage of the F8 is a compact but well-made unit, but we have to say that the second stage doesnt actually look as eye-catching as its cheaper sibling, the Onyx II (which scored well last month). Yoke valves are more common but only work with tanks filled to less than 3000 PSI. Features of the FDX-i first stage include chrome-plated marine brass construction, pneumatically balanced, and environmentally sealed. This regulator has absolutely everything you need and nothing you dont, with very few moving parts and pieces. The first stage is a solid piece of kit, with natural dynamic flow control on all low-pressure ports, which are mounted on a swivel turret, and tilted so you can find that perfect routing. Personally, I find the 2nd stage ugly as hell so I use my Mares proton metal. This is a great regulator for warm water diving. While it performed well straight out of the box, we liked the ability to tweak the breathe to our liking the venturi and the cracking resistance control were both large and easy to locate and operate while wearing gloves. Next, the regulator should be rinsed with fresh water. Paired up with the D420, it offers a high-performance package, though the bizarre shape of that second stage does take some getting used to. The XL4+ is one of their newest regulator effectively an XL4 but with an added high-pressure port and a nifty white colour scheme and as with its predecessor, was designed from the outset to be a very lightweight, travel-friendly unit, but crucially, also cold-water rated. Outside of Atomic Aquatics products, the closest you get to a high-quality regulator is the SCUBAPRO M25 A700. It is very common after a few dives to have a bad o-ring that leaks on a yoke valve scuba tank. It comes with two high pressure and four low-pressure ports. The body of the second stage is reminiscent of the lightweight Flight reg, except this has a large purge on the front, and an easy-to-operate venturi lever. If the diver does hold their breathe and is ascending it could cause lung over-expansion which can be fatal. It is required to have a secondary regulator when scuba diving. CRACKING RESISTANCE:Yes |VENTURI:No|VERDICT:The MTX-R set the bar high for a cold-water reg, and the MTX-RC builds on this platform, adding a highly efficient venturi lever and cracking resistance control into the mix. If you learned to dive in warm water, you might be wondering why its important to have so many ports on your regulators first stage. This is a great regulator for basic and advanced diving in warm and cold water environments. It is one of only two regs in this price segment to feature both a venturi lever and a cracking resistance control. When using a wrist computer even if it transmits pressure should have an SPG that is directly connected to the regulator. In addition to these checks, the tank condition and valve conditions should be checked before each use. DIN valves screw directly into the dive tank, to form a highly stable seal. It is well priced, and a decent performer all-round. The Vortex Assisted Design creates a swirling vortex with a low-pressure area in the centre that keeps the diaphragm down during inhalation, for easy breathing at all depths. It has been improved upon by Scubapros G260 via the micro-adjust and exhalation effort. An extended thermal insolating system delays ice build-up on internal components. Choose a regulator made from a sturdy, insulating metal like brass or nickel instead. Working at a dive shop I have seen several tanks that ended up with significant water in them because the tank pressure was emptied during a dive. Thumbs up for the comfort of the ComfoBite mouthpiece as well. If you find the advice usual, please consider using the buy now button, we'll earn a small commission which helps us write more content. You may prefer this setup, as it is more comfortable and ergonomic for routing your hoses, especially if you are diving with a dry suit. The octopus is threaded onto a low-pressure port on the primary regulator. CRACKING RESISTANCE:Yes |VENTURI:No|VERDICT:The Z3 may be the affordable entry-level model into the world of Atomic Aquatics, but it has a lot in common with its more-expensive siblings. Diving in cold water requires sturdy, rugged equipment, and some regulators are tougher than others. In this case, the only difference between the octopus and the primary second stage is the hose and case are yellow to make it clear that it is the back-up. The D420 is suppose to excel once underwater so as soon as the ice melts I will give it a whirl. The XL4+ is a nice-looking regulator, especially with that white finish, and its subtle styling is matched by a stunning performance. The Epic Adj 82X put in a strong showing in this Group Test, and if anything, the Test Team felt we had to dial down the air flow it was so powerful. DIN vales have fewer o-ring problems and can typically be used with steel tanks up to 3500 psi. It has four low-pressure ports and two high-pressure ports on its DC7 first stage, which is pneumatically balanced and chrome-plated brass. It has two high-pressure ports and five low-pressure ports. Most DIN scuba tanks can also be dived with a yoke regulator if a threaded insert is placed in the valve and the tank is filled to 3,000 psi or less. The octopus could be an identical secondary regulator that is yellow or a lower-cost regulator with fewer features. No doubting the performance of the F8, though the breathe was nice and smooth in all positions, the cracking resistance control is large and easy to use, as is the venturi lever, and the mouthpiece is comfortable. The scuba octopus is a backup of the second stage regulator. Cressi air gauge with integrated Leonardo 2 dive computer. Comparing those three second stages on the "surface" the G260 breathes the easiest, then the D420/620ti seem tied. It has an average breathing effort is .6 J/l. It has a large easy to use purge valve and exhaust tree to help disperse bubbles.
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