Filter Finder
Type the model or part number printed on your filter, purifier, housing or O-ring. Dashes and spaces don’t matter. For O-rings you can also type an AS568 size (214, AS568-214) or the inside diameter x thickness (0.984 x 0.139 in, 25 x 3.5 mm).
O-ringAS568-357, 5.475 x 0.210 inBuna-N (nitrile) rubber
Measured: size confirmed by our own measurement
Fits 3M, AO Smith, APEC, Boshart
O-ringAS568-236, 3.234 x 0.139 inBuna-N rubber
Size stated by the manufacturer or sellers of this model
Fits Culligan, Pentek, 151231-27, OR-233
Size catalog: standard AS568 sizes we can supply. A size match is not a fit claim for your equipment. Some sizes ship from stock; others have a 2-3 business day lead time before they ship. Not for oxygen, medical, aviation, scuba or other safety-critical use.
| Inside diameter | 2.987 in (75.87 mm) |
|---|---|
| Cross section | 0.103 in (2.62 mm) |
| Outside diameter | 3.193 in (81.11 mm) |
Not sure? Send us your model number and we will confirm the fit.
