Today, I changed my coolant tank overflow hose from a clear vinyl to a black version. I used 5/16” ID vacuum hose which almost felt like a silicone blend:
As before, I bought a longer length (35", 3 feet was just enough), and secured the other end down low, out of sight, behind the rear wheel well. This will prevent a mess in the engine compartment should the coolant overflow:
The clear version initially looked good, but developed condensation and turned a bit yellow with heat and age:
Plus, the black version is a better match to the rest of the compartment.