Looking for info on holding tank...

[Greg_B]

Looking for info on holding tank vent filter. Anyone know the size for a 1989 440 CV?

Thanks in advance.

[mdtomoates]

I think they are all the same size. Some have 5/8" hose barb and others just screw in. https://www.amazon.com/Voker-Holding-Tank-Vent-Filter/dp/B00E533IE8/ref=sr_1_1?ie=UTF8&qid=1535053302&sr=8-1&keywords=holding+tank+vent+filter