The OEM filter kits that SNG supply come with two sealing rings and I just want to make sure I'm using the correct one!
Both rings have the same circumference and same thickness, but one is slightly wider/ deeper than the other.
Any reason for two different rings being supplied? Or is it a case of 'use the one that fits the best'
Have looked through the tech data etc but cant find the info.
Thanks in advance.
Paul





