I only recieved the unit earlier this week, but I have since done a water change. At 75gpd this makes water at a perfect rate for my needs (30g cube), a 5g bucket for water change and another for top off through out the week. Probably only takes less than an hour and a half to make 5g worth.

Everything came very well packaged, with good instructions, all I had to do was hook it up to the hose bib. It took less than 2 minutes.

Awesome system and everything I needed to start making my own RO/DI water. Construction is very well done as only BRS can do.

I bought the 4 stage RO/DI in early 2012 after my tank had been set up so I only needed top off and water change water on a 40 breeder. Came fully set up and gave me 0 tds water till February 2013 when we had a nasty cold spell (unit was setup in my garage). The faucet adapter froze. Took my lazy butt till May to order a new one after checking a few local hardware stores. While I was at it I ordered a new new filter set for only $20 or so. Don't think they needed to be changed but it was cheap and the unit sat for a few months. They were easy to change and I'm good to go making absolutely pure water for my reef.

Received my RO/DI system and hooked it to my garden hose using the included adapter. System worked great producing 10 gallons of TDS free water in about 3 hours. Used the rejected water to for the plants in my backyard.

Excellent product. Plug n Play, easy to set up simple to use. Makes perfect ro/di water everytime. Arrived on time and just as described, packaging was perfect. It's a must have, this just makes things much easier for reef keeping. Flush valve, pressure gauge and TDS meter already installed......BRS has the best price. I've shopped around and this is the best product at a great price.

Packaged well and ready go to out of the box. Built solid and 0 tds what more could you ask for.

up and running in less than 5 minutes... super easy... water in 4ppm and water out zero ppm... loving it.. thinking about one.. advice stop thinking get one.. upgrading mine soon as I can.. make something great better. only through brs...

I took it out of the box and was making water in five minutes. Everything needed to hook up is in the box, couldn't be easier..

This was my first RO/DI unit and its awesome. This thing is huge. It arrived in 3 days and well packaged. made my first 10 gallons of water as soon as I got.

Excellent. What more can I say?

This product is all that and a bag of chips. I'm blown away by how amazing it is and the quality of my water since getting this system.

I am so happy with this item. The build quality is outstanding and the information shown to help me make my decision was spot on. It was delivered just as promised and was so easy to set up and start using right out of the package. I would highly recommend this to anyone looking for an economical way to start their own RO/DI system. Thank you again.

Just set this up last night. I had to run to my local hardware store to get an adapter in order for me to attach it to my laundry room sink. Once I had that, I was able to set up and start getting water within minutes. This is a great system and worth the investment.

very well build with nicely ran water lines. super easy and quick to set up.. i did have to go buy a adapter tough. and i found out it takes a loooong time to fill 75 gallons of pure 0 tds water.. my advice- check your house water pressure before you buy this so u know if your going to need the booster pump also..

Packaged well, Quality and solid build. Ready to go outt of box and includes easy to understand instructions. The added pressure gauge,tds meter and flush valve are such an amazing bonus on this fantastic unit! Blew my expectations out of the water,(pun intended)

Fantastic, do yourself a Giant favor and get this now! You will be thrilled!

The item is as described and does exactly what it is supposed to do. It is very sturdy and well built. I have had my sytem now for over a year and I'm very pleased.

i would hihgly recommend this RO/DI. It also has a pressure gauge and a in/out TDS meter. you wont need a seperate one!
make sure you buy the float swith along with this for a care free approach

Great product especially for the price. easy to change filters and built in TDS meter makes knowing when to change filters and DI media easy.

Very clean and nice setup.

Out of the box and installed in less than 10 minutes! Came with everything I needed. Too simple! Made my first 0 TDS water change in no time.

best price for a complete unit with all the cartriges

I looked at many various RO/DI systems ranging from products in my local hardware stores to aquarium specific products. After a lot of looking and reading I decided on the BRS 4 stage and I could not be happier. It is a great unit and in less than 5 minutes I had it out of the box and running. Since then thanks to the helpful videos I have mounted mine under a sink in the laundry room to make my wife happy. The video was a huge help! I would buy another one tomorrow and really like the support you get from the team at BRS.

Won on a raffle or reef stock show. I already had an RO unit from purely H2O so figured I just sell it. Nevermind mind I will be getting rid of my old unit. BRS unit is the entire package with flush kit and TDS installed already. Wish I would have bought this before my old unit

Saves money and back breaking time to supply water for your tank. A must to have.

My water in house is pretty good, but I didn't like that I was adding chemicals to it to make it reef safe.

This unit gives me peace of mind, and the visual indicator of the water being de chlorinated and all the dissolved metals being removed is a nice peace of mind.

My inlet watter reads 0.01 PPM, and outlet reads 0! Just as I want!

Installed in less than 15 minutes (10 of it figuring out where I wanted to put it). I get about 60 - 70 gallons a day off my city water. TDS going in is about 5 and the GH is around 200 ppm with my water pressure around 60 psi.

It's a great product, and produces 0 TDS water. I have fairly good water where I live, but this unit has functioned flawlessly for 6 months now. Don't buy anything less than this, or you'll simply be unhappy and it will cost you more in the end.

I bought this unit four months ago after finding out my local LRS’s free RO/DI water was closer to tap water than RO/DI water. The unit fits perfectly under my laundry sink for easy operation. The unit is well-constructed and the built in TDS meter and pressure gauge is great for determining when filters need changing. I would highly recommend this to anyone looking for a RO/DI setup.

I purchased this a short while back, Love it produces perfect RO/DI water. Simple to install easy to use color changing resin makes it simple blue to brown time to change. Awesome product. Highly recommend.

Works great! Feels solid and expensive...After reviewing and searching the internet this is the best deal. If you are thinking about buying watch the BRS video on it, it sold me. Love the TDS meter

Only took about 30 minutes to install this unit and get it up and running. I was pleasantly surprised by the quality and build of this unit. My unit is filtering my water to 6-7 ppm before the de-ionizing block and its coming out of the machine at a solid 0 ppm. Did a 30g rodi water change on my 125 saltwater tank and its already helping to control the algae.

I just used this RODI unit over the weekend, and I am happy to say that I am very pleased with the output of water. Easy to understand directions, and no more trips to the fish store to get more RO water. I also plan on getting 2 large trashcans to stockpile my water.

This was exactly what I was looking for at a great price!

the unit came assembled it works great thanks

Basically just plug and play ..... :) Great buy !

Bought this product a week ago fast shipping was here in two days, easy to use, basically its just plug and play, would recommend to a friend or anyone that has an aquarium, very happy with this product

I have mine filling a 32 gallon Big brute. I used a water cooler float valve and the only thing i would change is make the lines a little longer, Works perfect as was designed.. thank you Bulk Reef Supply

Great price, fast shipping!!!!
no more buying over priced water from LFS!
this system was easy to set up and started producing great water!

GREAT PRODUCT, GLAD THAT I DECIDED TO SPEND A FEW EXTRA BUCKS ON A BETTER QUALITY PRODUCT.

great buy. shipped fast. got here in wisconsin in 2 days. this unit breaks the unwritten code of saltwater though. it actually comes with instructions! only down side is the 4 to 1 waste water ratio. very minor. just wasnt expecting that. i get 70 psi from tap so it is chugging out clean water no prob. almost no assembly needed. comes ready to go. tds meter is great. water going in is 3 tds. water out is 0 tds. unit is sturdy. kinda heavy (good). and the see thru canisters are pimpin. this be good bling for ur shizzle.

Unit arrived very quick, ordered Monday here in FL Thurs.
Arrived packed very well, and was basically plug and play with the faucet attachment. I get 5 gal in about 90 mins! If you are considering it go for it! I suggest getting the John Guest 3/8 3/8 1/4 adapter valve so it can fit nicely under a kitchen or bathroom sink. This an awesome product, works flawlessly and in a PnP rodi system!

i love this thing so far, I have high water pressure so it pumps out a pretty good amount of water every day. very easy to hook up, and I'm terrible with anything DIY!!!!

This unit was the best money spent. It was easy to install an been working like a champ. It has been very convenient and saving me money from having to go buy salt water and top off from my LFS. I have mention it to all my friends and family that are in the Hobby... Great value

This is my second RODI system - the first one I purchased from another vendor. It was a fancier 5 stage system. Both of them produce 0 TDS water. However, do NOT go lower than this system. The flush valve is very important to RO membrane lifespan and the TDS meter is also great to have.

For all first time RODI buyers, there is a good chance that your water supply will not produce enough pressure to make the system effective. If you live in an apartment building, there is a 90+% chance that this will be the case. For that reason, I'd highly recommend purchasing a booster pump.

All in all, an exceptionally high quality unit.

This is an essential piece of equipment for an aquarium. I have been using it for a couple months now and absolutely love it. The best RO/DI unit i have ever seen.

Great value. Everything comes assembled and ready to use.

Hooked up, turned on the water and got sprayed in the face. Disassembled the unit and one of the fittings was cracked in half. BRS closed all weekend, so I replaced myself.

Build quality seems great otherwise.

Just getting started in the saltwater game, and every piece of advice I've had from seasoned reefers starts with "Get a RO/DI unit" and right after that is "and get it from BRS!"
Fast shipping! Easy to hook up and superb support if you actually need it.

I had been paying for water at my LFS, but realized there water was not clean and caused some issues in my tank. So i was actually using tap water for a few months till i found a RO/DI unit i liked. I was really happy a friend recomended bulk reef.

The box arrived quickly and was packed well. The unit is heavy. it can be moved easily, but it is heavy and i can see the benefit of mounting it under a sink or next to a utility tub.

I conntected the filter to my utility tub in the basement. The tub spigot has a garden hose type connection. I turned the unit on and let it run for an hour to clean ot the filters. i came back to find a puddle of water on the floor. however this was NOT the fault of the filter. I dont often run the sink too much, and basically the faucet is old and unknown to me it was leaking. So i think between leaving it on for an extended amount of time, plus the backpressure associated with getting the water into the filter caused a leak with the utlity sink. Again, this was not the filter's fault. I only mention it to alert people to be sure to use a faucet that is in good working order.

I dont have any other indoor locations to attatch the filter, so i attached it to my outside hose bib. The weather was above freezing. I had the blue line placed into a bucket, with the black (waste) line going out into the yard. At first, i would say the filter was making about 1.5 gallons an hour, the pressure was reading around 60 (if i remember correctly).

The filter does have a built in tester, but i found it to be a little bugging in reading the incoming water. I have a pocket sized tester and my tap water is generally around 140ppm-160pp. The filtered water was coming out at 0ppm. YAY.

After having used the filter a few times, it is filtering quicker. I get about 2-3 gallons an hour. I think some of thie matters if there are other water demands on the house (like the dishwasher or washing machine).

The filter is very easy to use. It only took me a few moments to get it running. The instructions it came with are nice and i know if i had issues i could contact bulk reef.

I recomend this filter and i am very happy with it.

BTW, i have tasted the water out of the filter. It basically just has no taste, or at least tastes super clean. It it is also hard to describe the smell. There is basically no smell, but i still feel like i smell something, i think it is just a smell like clean.

I only have a 29 gallon tank with a mixture of very friendly fish and zoas and a hairy mushroom. I am working on switching out tank water with the new RO/DI salt water. I cannot say i have seen differences yet with my critters, but i can say my zoanthids look a little more open.