it does change color it works awesome By paul on 2/28/12
paul would recommend this product to a friend
it woks very well.it gives me zero tds.
Good stuff as always By Joshua on 2/27/12
Joshua would recommend this product to a friend
Use this always never had a problem! Lasts along time and easy to fill the cartrage! Nothing better than getting a cartrage bag that always has a little more in it than what you need! Thansk BRS
great idea By Mark on 2/11/12
Mark would recommend this product to a friend
DI Resin refills make changing DI even easier and less mess. Great idea here!
simple convenient and works By ard on 2/6/12
ard would recommend this product to a friend
make life simpler and it works.
This stuff is AWESOME By Cory on 2/6/12
Cory would recommend this product to a friend
I bought this for my RO unit and it is much better than the all-in-one cartridge I have been using, I love the color change as the Resin is used up.
Great Product at the Best Price By Ben on 2/1/12
Ben would recommend this product to a friend
Great Product, BRS has it at the best price too even adding in for shipping.
Easier than I thought By Adam on 1/14/12
Adam would recommend this product to a friend
Watched the video and did exactly as it said. The amount in the package was just the right amount to complete a full recharge.
0ppm By Jose on 1/9/12
Jose would recommend this product to a friend
excellent resin 100% recommended. 0ppm
Awsome By Ryan on 12/30/11
Ryan would recommend this product to a friend
First time using the refill. Works very well tds 0. Great video instruction as well.
Love it! By Ron on 12/30/11
Ron would recommend this product to a friend
So easy to tell when it is time to change it!
Great Product By William on 12/28/11
William would recommend this product to a friend
Color change goes hand in hand with what the TDS reading is!! Easy to know when i need to be looking at changing resin!
Good Product By Emilio on 12/13/11
Emilio would recommend this product to a friend
Good product. Easy to refill and i will continue to use. Thanks for the videos they stopped my from complicating something very simple!!!
Great! By Brennan on 12/13/11
Brennan would recommend this product to a friend
I bought it with the refilable cartrige to save money but turns out this is better than every other DI I've used! In the past I've used cartrigest from coralife and the package deal cartrige from the "another" popular website. I NEVER had 0 tdi, though maybe my meter was off. Now I read 0 even with my old (2+ years) ro membrane. I think the secret is that it's sealed so well and also that you pack it real nice yourself (and that packing later doesn't get messed up with shipping). Only suggestion is that they should provide replacement bottom foam with the resien, my foam seemed to get a bit mangled when screwing the bottom on..
Great product By Don on 11/25/11
Don would recommend this product to a friend
I was buying the premade kent cartridges until I started using the bulk DI resin. I save a ton and get close to 7 refills which can add up quickly when buy the premade one. I have well water and my TDS always comes out at 0, this stuff is the best.
works great By Frank on 11/23/11
Frank would recommend this product to a friend
post RO 9 TDS After 0 TDS
Great By Marcus on 10/24/11
Marcus would recommend this product to a friend
Works well, keeps my TDS at 0 until exhausted.
Excellent stuff By Toby on 10/12/11
Toby would recommend this product to a friend
I've done quite a few hundred gallons since purchasing this stuff and I'd have to say that it's holding up much better than the "manufacturer" brand. Color is just fine whereas the other stuff would have started to change on me already. Not sure what to think other than it's higher quality.
Good Stuff but... By David on 10/8/11
David would recommend this product to a friend
Good stuff but I am going to save the little bit of money because I use a TDS meter and I don't need the color change. I found that by reading TDS the resin works well past the time it changes color.
Saves you money and very easy to do By Sarah on 9/17/11
Sarah would recommend this product to a friend
I got tired of spending so much for DI resin cartridges that I thought I would give this a try. It was so easy to do that I wondered if I did it right. I am happy to say that I did do it right and my ro unit does not know the difference. My output reads zero tds! I will be back for more when I need it.
So nice to use. By Ryan on 9/5/11
Ryan would recommend this product to a friend
This resin is great, the color change is drastic by comparison to other color-changing resins on the market. I will continue to use it.
I love this stuff. By vladimir on 8/22/11
vladimir would recommend this product to a friend
This product works well. When exhausted it changed colors from blue to brown. TDS went to 0. This is a very good and affordable product.
Great product By Bud on 8/17/11
Bud would recommend this product to a friend
I used to buy the cheapest resin I could find, and only knew when you change it by testing TDS or by the smell of the water. We have really bad water so occasionally it would go south before I could tell and I would get nuisance algae outbreaks. The color change beads make it easy to tell how much time I have left. Started changing right away from the bottom up, so I feel much more confident about my RODI quality.
Good Quality Resin By John on 8/17/11
John would recommend this product to a friend
After trying some DI resin off of ebay this was a huge improvement. I was getting 30 TDS from the ebay resin and after switching to this I've been at 0 TDS for months
Great Product and Savings By Bill on 8/14/11
Bill would recommend this product to a friend
I can refill my canisters 6 times and save $20.00 each canister, that's $120.00 less then retail
Great Quality & Easy By Christopher on 8/5/11
Christopher would recommend this product to a friend
Once you refill your DI cartridge one time it is not difficult at all.
DI resin does have a shelf life so don't buy bulk unless you need it within a few months.
Great product By DETANE on 8/5/11
DETANE would recommend this product to a friend
I purchased this to replace the DI resin in my Vertex RO/DI unit. It works very well but doesnt last as long as the original product that came with the unit. Still a very good deal considering the price diffrences. I may have to replace the DI resin often but Ill be saving $$$$ in the long run.
Save Some Money By Shannon on 8/4/11
Shannon would recommend this product to a friend
This material has got a nice color indicator that's easy to figure out. Why not save some money on packing it yourself. It takes very little effort.
Truly superior By Jason on 7/18/11
Jason would recommend this product to a friend
We have extremely hard water where I live with fluctuating tap TDS that ranges from 330's and spikes to nearly 600! Regardless of the source water, since I have changed to a dual DI canister system - my final TDS is always 0. Unbelievable!!!
Works awesome for me By Nathan on 7/15/11
Nathan would recommend this product to a friend
I have low TDS to start, but my post RO water is around 9TDS and this gets it to 0 most of the time.
Great Price, Great Product By Joseph on 7/13/11
Joseph would recommend this product to a friend
I have tried other resin bulk reef's is the best, the color change is very helpful and the price is great, my local fish store tried selling me the regular resin for 28 bucks.
Works perfect By Ralph on 7/13/11
Ralph would recommend this product to a friend
I really like that I'm able at a glance see the color change intheDi that it will need to be changed. I have a TDS monitor on the system, but have learned no need to keep checking it until the color is close to being gone. I'm completely happen with the product.
Works perfectly By Kevin on 7/10/11
Kevin would recommend this product to a friend
It's nice to have this color changing resin, but it usually changes long before it's exhausted. I still use a TDS meter to maximize the use and only change it when I see a 1ppm reading.
Blue-my favorite color By Jeffrey-resin eater on 7/6/11
Jeffrey-resin eater would recommend this product to a friend
Great stuff-you can cram it into your container of choice, then pound it on the table, and it doesn't even cry. Now that's selective breeding at it's best. (LOL)
Then, when you're finished using it, you can pure it onto the floor, and lean your head back and dream that you are at the beach while you wiggle your toes in it.
Ahhhh, Bulk Reef Supply..... your da man!!!!!!
Great Stuff Great Price By antole on 6/21/11
antole would recommend this product to a friend
the value of this product is great color change is highly noticeable will be ordering again thanks BRS
A real money saver By Edward on 6/13/11
Edward would recommend this product to a friend
Works great, and cost as much as 5 times less than others! Thanks again BRS!
Inexpensive & works well By Adrian on 5/28/11
Adrian would recommend this product to a friend
An inexpensive way of DIY replacement for the spent DI resin in the RO/DI filter system
Great By Steven on 5/17/11
Steven would recommend this product to a friend
Love this product no guessing just color changing.
Love the color changing By Scott on 5/13/11
Scott would recommend this product to a friend
Being able to know if your resin is still working by one quick glance is awsome. No more do I have to guess if I need to change my resin out.
Dramatic color change By James on 5/3/11
James would recommend this product to a friend
Very good resin, and and excellent value. Looks like can fill about 6+ canisters with this 7.5 bag. The color change is very dramatic, you definately know when its used up.
good By drew on 4/30/11
drew would recommend this product to a friend
great product, color change is great
awesome stuff By Joe on 3/19/11
Joe would recommend this product to a friend
I got this and able to reduce my RO/DI water to 0 ppm and reduce the cost of maintenance my RO/DI system. Very easy to see and use and this bag will last me for 10 months to a year. Awesome!!
Works like a charm By Rick on 3/17/11
Rick would recommend this product to a friend
Obvious change in color when exhausted. I've used this for years, and produce 0 TDS from the DI!
10 stars for this refill By Ryan on 3/13/11
Ryan would recommend this product to a friend
This is the best way to save money and get crystal clear water at the same time. Lets you know when its time to change and works great. I was spending $52.62 in this cartridge at my local pet shop and now I dont mind paying and making sure i change it on time now on. Super product and better price gets 10 stars in my book...
Great Product! By Brian on 2/25/11
Brian would recommend this product to a friend
The color changing resin is great. You can easily tell when the resin is nearing the end of its life, so I monitor the TDS meter more closely to ensure I maximize the use of the product. The 7.5lb bag is great as I do pretty frequent water changes (about every other week) due to the load within my tank.
Perfect By Gregory on 1/14/11
Gregory would recommend this product to a friend
I was really glad that this comes with just a little extra as I did spill some. Also vary happy I have a visaul idea of my resins life!
Excellent Product By Dave on 1/14/11
Dave would recommend this product to a friend
My water before RO is 330 after running through a Bulk Reef Supply RO unit and through this resin it is at 0. I like how you can monitor when it is time to be chaged out. I would still invest in a tds meter because I can still run a couple hundred gallons of water after it has changed color. Thumbs up as usuall to Bulk Reef Supply for a great product at a great value.
So much resin! By Michael on 1/10/11
Michael would recommend this product to a friend
This replacement DI resin is awesome, you receive more resin then you need, and can fill the canister all the way to the top. My last DI replacement filter didn't come with near this much resin inside, and was twice the price - total value here!
Great By Kit on 1/9/11
Kit would recommend this product to a friend
This is a must for your RODI system, simple and yet effective. Works as advertised!