819-4.5 Dive Systems Diving Ventilator Diving Scuba Tanks,Diving Tanks Portable Rechargeable Scuba Tanks Diving System,Waterproof Air Compressor(4.5Hrs)

I'm a diver. I use it daily. This machine is magic. A total game changer and welcomed into my family of dive tools. I own three of them now.

UPDATE Recieved new working unit 11 Feb, your milage may vary3rd time submitting review so trying no pictures or video.Received unit on Jan 10 and charged it up overnight. Then all it would do when turned on is make a click. No motor running and no pressure. OK, fine, let's call the number on the unit for some help. NO, turns out that number goes to a warehouse worker that can not tell you anything! So then call the phone number on the website, Well it goes to the same warehouse worker. Start a chat on the website,,, a few days later I get a reply but the conversation actually takes a few days and emails. Testing done and things checked and finally on 20 Jan they say they will replace it. Now it is 29 Jan and NOT a SINGLE WORD and no replacement.

Make sure to clean the internals.

The product my be acceptable but I don't like that they keep dumbing down the product to cut costs. Their manual shows more than you get. The power meter has been removed and they replaced the carbon replacement filter with foam. Cheapflation? To me this is product deception. I am hoping the quality inside the unit hasn't also been degraded since your life may depend on it.Update: When I notified them the additional filter block was not included, they sent me a sack of activated charcoal. You can see they are not even close to each other. That loose stuff works for fish, but I am not a fish.Also, the maintenance seals included do not even match the seal in the compressor.

Used it once so far, worked well.

The media could not be loaded. To start, there are no real reviews on this product, not sure why. But My experience order this on Dec 18th 23 received delivered Dec 26th due to holidays. When I received the package it looked like it had been retaped. Upon opening it, there was a new hose in a slightly tore package was ok, there was charcoal in the filter(not sure if it was supposed to ship prepacked). replacement white filters were in the box, but there was no extra Charcoal to replace it, was missing. The regulator was attached to the filter and the coiled hose. Not sure if the Regulator was new or used, it had some slight residue on it. Now the unit itself, as you can see in the pictures it has what looks like white raised spots that look like corrosion maybe this was a Used Return main unit, with a new replacement hose, not quite sure but the plastic was off of the battery display screen. Now for the performance.. I'm 5'11 230 lbs. I was only able to use this unit a few times in 10-12ft of water. During those times I would just be hanging out with the reef fish, it was enough air flow for that. The unit would kick on after almost every breath, and sometimes run constantly. It was ok for shallow diving where you don't want to be snorkeling, and want to stay down. Today I finally was able to use it out on the main reef about 22-28ft total depth( this is my last day to return it, and hadn't been able to get out that deep) the wave were about 2 -3 ft at times. The unit ran constantly, I did have to noticeably take slightly harder breaths at around 20- 23 ft, and take slower breaths for the unit to keep up. The unit did well in the wave, I didn't have any water entering the intake tube that I noticed. I do not know the battery life as I've only used it maybe around 30-45 minutes before recharging it, at shallow depth. I'm not sure if this is a keeper. I don't plan on every using this more than 25 ft. However I feel if there was any kind of current you would have to kick in this my be under powered in that situation. I did purchase the Amzn 2 year warranty, if that is any good. 1 other thing this thing comes with a crappy tiny dive flag that just slides down the short intake hose and doesn't even stay up. I did modify the intake snorkel to accept a dive flag. This needs to have a real dive flag holder. Anyway, it worked well in shallower water, it didn't tip in 2-3 ft seas. It's nice and portable, not sure of run time, not sure of durability. Wish the pro wasn't so much, maybe they can send me a higher volume pump assembly if I keep this one? Any way hope this helps. Happy Diving!

Any kind of underwater, compressed air diving is considered an extreme sport and this system is far less safe than jumping off a cliff with a hang glider. Serious training is required.Please, please, please find someone who is properly SCUBA trained and ask them if this is true and why.

I really really want to say I'm in love with it. I want to but cant. Maybe I'm just a bit out of shape but I bought this to maintain the bottom of my boat do inspections and to be able to just basically sit on the bottom and watch tropical fish nothing exciting. I've never went down more than 10 ft however just feel like I cant get my breath. Tried to relax and breath slow as possible but last time I used it felt like I had to nearly suck on it not just breath and it's a bad feeling. I changed the filters even though I only had maybe 2 hours on the filters but it didn't seem to help and it had a full battery still.Anyway seems to be ok as long as I am not exerting myself at all in 10ft of water or less and scrapping the bottom of my boat in shallow water allowing me to stay down while I'm doing it. this is supposed to support 2 divers there is no way in heck it can do that unless it's 2 5 yr olds with child lungs. I'm 60 yr old so again not young I weigh 168 and 6ft tall so not over weight either.Just be aware of it's limitations dont think your gonna go diving and stay down for hours or an hour and exert yourself.