How frequently should the silicone delivery tubing be replaced?

ANKOM recommends replacing the delivery tubing every one to two years depending on the use of the instrument. 

Order the Delivery Tube Replacement Set (Part #: TDF126) by contacting ANKOM Technology at (315) 986-8090 or by ordering from the website. Refer to TDF Service Procedure Delivery Tubing Replacement (TS006) for installation instructions.