MilesMaster - A 1950's Fuel Economy Semi-Gimmick Device

In this video I unbox a New Old Stock MilesMaster 3-in-1 fuel pressure regulator.
This has a fuel pressure regulator, a brass filter screen and a magnet.
This would be installed in-line with the carburetor on a car, MileMaster claimed it would "increase fuel economy" "reduce wear to the carburetor needle & seat" "prevent vapor lock" "reduce crankcase fuel dilution" and a host of other things.
These were advertised in Popular Mechanics magazine from 1956 through at least 1960.

1956 Ad:
https://books.google.com/books?id=8CkDAAAAMBAJ&pg=PA91&dq=milesmaster

1958 Ads:
https://books.google.com/books?id=fN8DAAAAMBAJ&pg=PA35&dq=milesmaster
https://books.google.com/books?id=xiUDAAAAMBAJ&pg=PA70&dq=milesmaster

1959 Ad:
https://books.google.com/books?id=Q9wDAAAAMBAJ&pg=PA56&dq=miles+master

1960 Ad:
https://books.google.com/books?id=q9sDAAAAMBAJ&pg=PA268&dq=milesmaster

Chapters:
00:00 Intro
01:10 Disassembly
02:17 Popular Mechanics Ads
02:55 Outro