Water Filter & Plumbing O-Rings
Not sure what filter housing make/model you have? Check out our printable water filter o-ring size chart here. Simply print out the chart and lay your o-ring on the page to see which size it matches with.
Note: Size chart must be printed at "Actual Size" or "100% scale"and not "fit to page" or "shrink to page" settings in order for printed o-ring sizing to be accurate. There is a calibration line printed on the bottom of the page that can be measured to confirm the page printed at actual size.
