Just finished cleaning up from cutting it open. I used a Dremel tool. It was on my cav for 2700 miles with Valvoline Maxlife Blend 10W-40. The ADBV definitely worked, it was full of oil, as you can see. The can isn't very thick, but probably it is the right thickness for the size filter. The media felt very sturdy, even after sitting full of oil for months it was still very stiff. Very little pleat deflection. It is a dome end bypass, with a Silicon ADBV. It is rated for 99.9% efficiency at 20um. Made in USA.