Pitot tube isolator

[FabricGATOR]

Hello,

Yesterday I received my new Yamaha speedometer from Boats.net. The old one being the worse of the four as far as display clarity.

While inspecting for correct wiring, I noted a tag attached, that showed the dip switch settings. On this tag, it appeared that there was depicted a square thing attached inline with the pitot tube hose. I can only imagine that this is an isolator diaphragm to keep potential saltwater out of my instrument.

Where can I get one and what is the correct name for it? What do I ask for?

[boats.net]

You don't want that, if have on old gauge remove it and throw it away, causes more trouble than it's worth.

[FabricGATOR]

Thank you, I don't want stuff that's trouble, that is for sure.