Aqua Pure 6889832 Whole House Filter O-Ring
Most people never even think about replacing the O-Rings in their water filtration system... until they're using a shop vac to suck 7-Inch of water out of their basement. Funny how that works huh? The truth is that O-Rings don't last forever and you just never know when they're going to fail, so spend a few bucks today and save yourself BIG money tomorrow!.