Primochill Anti-Kink Coils are extruded PVC coils designed to be wrapped around 5/8" Outer Diameter soft vinyl tubes, and eliminate tube kinking and flattening in medium to sharp bend areas.

Please make sure to note the measurements of the tubing you are using. Water cooling tubing is usually measured by the Inner Diameter of the tube. The outer diameter (OD) will vary depending on the tube wall thickness.
PrimoChill Anti-Kink Coils are shipped in precut 40" length. One length is typically sufficient for a single CPU cooling circuit depending on how tight the coils are wrapped around the tubing. Two lengths are necessary for a complete circuit including dual CPU, CPU+VGA, or CPU+VGA+Chipset setups.