Went to a car lot....told salesmen (actually a women---they sell too) what I was looking for.
Was told.....no longer available.
Except we were standing right next to one.....as I pointed that out she stated 'OH that model'
Went to hardware store....was looking for a garden hose washer with screen -----like those in city water connections on RVs.
Salesmen suggested I look in 'plumbing section' where the faucet parts were.
Told him I wasn't looking for an 'faucet aerator' but a garden hose washer with a screen. "Oh --we don't care them"
Thanked him then went and find garden section.....picked up a bag with 10 of them in it. (I use them for my sprinklers fed by irrigation water---Verde River)
Salespersons are the same everywhere regardless of 'product'
Some have NO clue.
SOME actually go about learning product. Just depends if you happen to luck out and find ONE of those.