Water Filter O-Rings 2pk Replacement o-rings with lubricant #1 O-Ring fits: GXWH04F, GXWH20F, GXWH20S, GXRM10GBL, GX1S01Rdels #2 O-Ring fits: GX1S01C, GXRV10ABL, GXSV10C, GXSL03C, GX1S15C 2 rings