DangerDen use Clearflex60. Not seen any suppliers in the scene offering 70.
Tygon vs Clearflex - I can't see ANY advantage of the Tygon over the Clearflex... Clearflex wins everytime purely on price. Tygon also features UV Filters, so if u use a UV Dye in your coolant, it's reaction to UV Light will be substantially weaker than with cheaper tubing.
Ultimately, sod UV Dye, if you want it to look pretty buy the UV Tubing to start with. I tend to find DangerDen's UV Hose a tad slack over the barbs so ensure you use decent jubilee hoseclamps... It's got good bend radius, but can be susceptible to kinking so just keep an eye on it and route hosing accordingly...
No problems basically with all 3 types of tubing.
Tygon - flexible - clear - UV filters - good bend radius - kinks as easily as CF60
CF60 - flexible - cleary pale bluey green color - weaker UV Filters - good bend radius - kinks as easily as Tygon
DDUV - very flexible - UV Colored - good bend radius - just over 1/2" ID imo - kinks the easiest of the 3 of em...
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