Round Gasket O-ring, Teflon encapsulated Viton rubber gasket. Fits PALL CBFP13 / CBFP-13 and CBFP14 / CBFP-14, FSI BFN-13 / BFN13 and BFN-14 / BFN14 filter housings, GASKET 1314-V-TFE-ENC-BFN, 1314-TFE-ENC-BFN. Ultra Chemical Resistant FEP-Encapsulated Viton Rubber O-Ring. EGR30087VT EGR-30087-VT EGR-30087VT EGR30087-VT