"HELP" Primochill soft tubing compatibility

[lalalala009]

I need some help recently I bought a PrimoChill PrimoFlex Advanced LRT 3/8in.ID x 1/2in.OD Tubing- Crystal Clear and for some reason my fittings doesn't fit. I have a Phobya 3/8 ID x 1/2 OD fittings. can anyone give some advice why it doesn't fit well and what kind of fittings should I use?

here is the link of what I tubing and fittings I have:

http://www.amazon.com/PrimoChill-PrimoFlex-Advanced-Tubing--Crystal/dp/B00A0PZZYQ/ref=sr_1_4?ie=UTF8&qid=1447808740&sr=8-4&keywords=primochill+3+8+x+1+2

http://www.performance-pcs.com/phobya-13-10mm-10x1-5mm-compression-fitting-outer-thread-1-4-black-nickel.html

 

[Unolocogringo]

Your links for fittings are for metric fittings.
11mm inner =25/64 slightly over 3/8 inch
13 mm outer=33/64 slightly more than 1/2 inch

You might get them to work with a little force and a good hair dryer to heat the tubing before installing it on the fittings.

 

[lalalala009]

@unolocogringo can you recommend any other fittings? to be honest the set up is already completed a month ago and as a beginner I did messed up got some kinks on the tubing and there are times coolant at reservoir starts going down. Fittings needed a lot of force to fit the tubing from my experience and I also did the hair dryer thing. So right now I decided to fix it and get other set of fittings. I also forgot I have other kinds of fittings too

2 for cpu block - http://www.performance-pcs.com/ek-acf-compression-fitting-10-13mm-3-8-x-1-2-nickel.html

2 for gpu block - http://www.performance-pcs.com/alphacool-hf-13-10-10x1-5mm-compression-fitting-45-revolvable-g1-4-chrome.html

 

[Unolocogringo]

You already have the fittings.
Here is a link for 13x10mm tubing.

The tubing will be a tight fit but not an extremely tight fit like you have now. the tight fit is what makes the waterproof seal. the outer clamp is a precaution in case the fan on the radiators stop working and the water gets very hot and softens the tubing making it easy to come loose.
http://www.aquatuning.us/water-cooling/tubing/tubes/6751/schlauch-pvc-13/10mm-3/8-id-high-flexible-clear

Cheap enough, less than a dollar per foot before shipping.
The unit measurement is for 1 meter or 39.37 inches ,which is enough for most builds but at that cost just buy 2 and have extra on hand in case you make another mistake.