PrimoChillPrimoFlex LRT Custom Watercooling Flexible Tubing -3/8in.ID x 1/2in.OD, 10 feet Bundled with System Prep and Coolant, Made with Premium Materials, Proudly Made in the USA - Onyx Black

I've used this exact tubing before, but purchased from a different vendor before and for a higher price, so I was happy to see Primochill set up shop here on Amazon. Bottom line is that this is the best tubing I've used. Their PETG tubing and this both have a very high quality feel and have glass-like clarity.At one point I deviated to try a different brand of tubing when making a large-sized purchase on a site that didn't have Primochill available and the tubing wasn't even close to what I had expected. It boasted clear tubing same as this and the pictures seemed evident, but in person looked more like cheap plastic with a thick coating and it unfortunately had to be placed in my system as a replacement as I lazily left the previous set of tubes on its own for too long and it started to show. So instead of using biocide and trying to remedy my old loop, I decided to refresh it and get a new batch of Primochill's tubing. Very happy to be back to quality tubing.It's still a pain to fit onto a couple of Bitspower fittings that are incorporated in the loop, but they play fine with my Monsoon fittings.Also included a couple of pictures of my latest WIP build that really give no justice to the tubing, but I figure I'll share anyway.As a final note, I hadn't even checked the listing enough before purchase to realise it also comes with loop treatment solutions and since I already have resources for that I can't weigh in on how effective those are. I'm sure they do their job though. Might update my review if I ever use them.

This package has the tubing and comes conviently with two small bottles with 'sysprep' and 'liquid utopia'. The tubing is plasticizer free so that should mean there's no plasticizer that could leach out and clog up small channels in your waterblocks or affect your pump.The tubing itself is is completely clear without markings. It is pretty easy to work with and cut with a sharp knife.. but make sure you have some room to push it over the barb fittings. The trick is to warm up the ends a bit - just with your hands - but not the bit that you are pushing. This makes it just a bit more flexible.The 'sysprep' is supposed to help you clean & line your loop (for 24H) and the liquid utopia is an anti-bacterial and anti-correrossion agent, so you shouldn't need any other coolant additives. The bottles are to be added to a gallon of demin / destilled water, so you should be able to fill up an average loop 3-5 times.All in all no compaints whatsover, good value and comes recommended by water cooling companies like EK.

Good tubes and additional additives makes it the best option on the market. I used an Alphacool tubes that came with my kit, and they got covered in plasticizer in less than a week and was looks terrible. This one remaining pretty clean, and was looks like a glass at first, but then got a little bit fogged, but still extremely transparent. From all tubes I tried, this one have the best clarity and they are so tight, that you hardly even need to tighten the fittings(but still, you should do it anyway)

Wish they left some instructions on the box. Thought I had the wrong hose at first because it wouldn't fit the 3/8 fittings. Read online it requires heating and stretching to get the ends to fit tightly. Followed that and install went ok.

The best flexible tubing I've ever used for my custom loops. I've used both the white and black colored tubing and it very easy to work with and is top quality. It provides a snug fit on the EKWB fittings while giving my rig a very unique touch. I plan to use primoflex tubing for future builds.

I am new to water cooling pc, but I can say that everything is so expensive. At least this tubing gets you pre-treatment wash and Algae/Corrosion Protectant solutions. From what I know, this tubing is best in the business, better than just going to a department store and buying cheap tubing. The reasoning being that the plastic material within the tubing will leach into the water system sooner. I wouldn't be surprised if this tubing would eventually do so too. The best type of tubing would be EPDM (black color) tubing. EK makes it calling it 'maintenance free tubing'. I brought this tubing and used it before knowing that. I thought it was just rather black tubing. Do your only research on what is the best tubing for PC custom water cooling loops.Furthermore, if you want more of the same tubing from Primochill, I recommend going to their website and buying spare tubing under their part selection. Because you can only buy these kits (with the solution) from Amazon. A 2-feet selection of this exact size is $1.99 on Primochill website. This beats having to spend more money on another 10ft pack with the solutions.

It serviced my PC for 7 years since purchased in 2017. It is still soft and no oxidation at all. But I decided to let it retire since I need to upgrade my PC as well.

The photo attached really says all, Primoflex is easily the best soft tubing a water cooling enthusiast could buy. The tube itself feels very strong and is capable of tight bends whilst retaining a great flow pressurePair it with Primochill compression fittings and your install will go way easier than mixing the tubing with Bitspower, EKWB or Burrow. I suppose this could be a negative for some people but, I do feel the aesthetics of the combo works and looks very good. Solid and trusted

Good looking, so clear