1-1/2" i.d. silicone tubing

[MitchM]

I'm looking to use the silicone fitting as a way to un-couple the pump as needed, so I can't use anything that has to be glued. I find the vinyl tubing that Home Depot sells pretty stiff to work with.
I did come across some 3" silicone couplers that are used for automotive applications, but given that they are 4 ply, they're probably just as stiff.


Thanks.