Hello,
I recently bought the filter,lower nozzle and the support wash

arm from your company. Took these old ones out and installed filter but when I got lower

support wash arm package there was a gasket included. There was no

gasket like this that was old so I was curious where does this black

gasket go. I thought maybe in went inside the strainer but can't see

any purpose for it. If you can advise I will appreciate it.

Thank you TONY