ok, so i went to Home Depot, they had 3 filters in stock.
it is made in China, so like that video, the guy recommends using that Plumbers pipe sealer (liquid) over the Teflon tape.
i had air leaks no matter how much i tightened the fittings.
once i applied the plumbers pipe sealer (also known as pipe compound) all leaks disappeared.
with tax, just over $17.00
and i had "spare parts" of like an extra quick connect coupler, and nipples from when i bought the airline kit with the air compressor.
the plumbers pipe sealer/compound, i had in the basement
View attachment 31849
in this pic, the Teflon tape was used.......not a good idea
View attachment 31850
in this pic, both sides got the plumbers sealer/pipe compound
View attachment 31851
now, does this filter work..??
of course it does. but only a "tiny bit" of water came out, when i went to drain it.
but that tiny amount "could have" been blown into any one of my guns, polymer or metal.