[RFI] 27 MHz band-pass filters?

[KD7JYK DM09]

Anyone have any leads on a plug-and-play BP filter similar to this:

https://www.dxengineering.com/parts/lbs-pb-f200-28

BUT, for 11m, roughly 26-28 MHz?

Not high-pass, or low-pass, but BAND-pass.  Doesn't need to be for high 
power either, 50W is double the power permitted for the service used.

I've come across only two or three references in the past 20 years or 
so, one in the US, one in the UK, both from companies long gone.

Thorough scouring of the web once or twice a year, for many, many years, 
has resulted in nothing.

Ideas?

Thanks.

Kurt