I have an Agilent 1290 UPLC with a PFC-free kit installed, but have been having trouble with the tubing that connects the solvent bottles to the pumps. The pump set up requites the tubing bend with a fairly small diameter to reach the pump inlet, and we have had multiple tubes start cracking (one to the point of leaking) within a year of installation. Has anyone else had this issue? Are you aware of any PFAS-free alternatives available? We would prefer not to replace this tubing every year – it is expensive! Thanks!