Durability & air-tightness of PUR tube on barbed air port

I’d like to connect a long tube to a pressure sensor with a barbed port to measure air pressure (ambient air pressure +-10kPa). The sensor’s barbed port has outer diameter 3mm.

I’m choosing between using silicone rubber tube, or a PUR (polyurethane) tube. The silicone tube seems the right choice, because it seems more elastic and I have the impression this tube is used for connecting to barbed ports in e.g. washing machines. However, PUR tube is 10x cheaper and I’m tempted to use that one instead, but I’m I don’t know if it will work long-term. Could PUR tube lose its elasticity and the connection lose its air-tightness over time? These PUR tubes are used in pneumatics with special fittings where they work well, but I don’t know about barbed ports with no extra clamps or locks.