This bundle includes two 1000ml bottles of Double Protect Ultra Coolant and a 1000ml filling bottle. DP ultra is the result of extensive testing and contains multiple specially selected components which offer optimal protection from corrosion and also allow maximum cooling performance. The coolant is manufactured following the highest quality standards and using only the best and most pure contents - completely made in Germany. DP ultra was specially designed for PC cooling applications with systems containing both copper and Aluminium components. The electrical conductivity was reduced to a minimum. The contents also reduce foam build-up and optimize the heat transfer by featuring optimal flow properties. The combination of these specially designed features allow maximum cooling performance and longevity for your system. Note: As this coolant contains dye it cannot be guaranteed that it will not stain e.g. clothing or other materials when coming in contact. Please also note that dye fades with time and the intensity of the colour may decrease. The LDPE Filling 1000ml Bottle is designed to make your life easier with its long filling tube, you can reach places right at the top of your case, like high mounted reservoirs and distro panels. This bottle is also ideal for mixing your concentrate liquid into a coolant. With this bottle, you can also drain your loop, by making sure the bottle is empty and then simply pre-squeeze the bottle, place the tube into your reservoir and release your hold on the bottle, and allow it to suck the liquid out of your rig.