I picked up three CQ Blue filters yesterday and out of the three I have:
Two where the can is painted black and has a base plate that looks exactly like a M1 filter. These two black painted ones look exactly like a M1 filter, even same style date code.
Date code 031516AB1
Date code 031516AB1
The third one is a white painted can, base plate sure looks like a Puro filter, and the louvers are hardly open.
Date code F10H01E1
Two where the can is painted black and has a base plate that looks exactly like a M1 filter. These two black painted ones look exactly like a M1 filter, even same style date code.
Date code 031516AB1
Date code 031516AB1
The third one is a white painted can, base plate sure looks like a Puro filter, and the louvers are hardly open.
Date code F10H01E1