Quote Originally Posted by FrostyPanda View Post
Hey thanks. But how do they connect to the blocks for example. Do i just need to screw in the barb part of the fitting first and then attach the hose and screw it down? Also, do you think that these fittings are necessary or are they mainly cosmetic. I'll have roughly 2-2.5 gallons per minute of flow in each of my three loops...
Yes, screw the barb part on the block first then put the tubing and screw the nut.

WL, you should add a note about that or they will put the fitting on the tubing before screwing on the block, causing a twist on the tube and leaks after a short while.