The customer¿s report of a cracked filter was not confirmed.The extension set was visually inspected for kinks, incomplete bonding engagements, holes/tears in the tubing or damages to the components.No crack was observed on the set¿s 0.2 micron filter.No other anomalies were observed.Functional testing resulted in the set flowing freely and ran with no issues observed.Pressure testing confirmed leaking from the extension set¿s filter vent closest to the intake port.The root cause of the filter vent leak was identified as the fluid resistance of the filter becoming roughly equivalent to the fluid resistance of the air vent, increasing backpressure at which time the fluid seeks the path of least resistance through the filter vent.The source of the leak was determined to be from the extension set¿s 0.2 micron filter vent closest to the intake port.
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