... 90 Approved:NSF,FDA,WRAS,KTW,W270,UL, silicone bathroom filter screen gasket DescriptionMaterial: SiliconeHardness:Shore40,50,60,70,80, ... *34 cmNot-standard packing: follow customers' requirement silicone bathroom filter screen gasket with high quality approved NSF61,WRAS,UL,FDA,ACS ... 23 UL Underwriters Laboratories MH45756 Rubber seals & NB, EPDM, silicone 2011/07/26 --- 2012/07/26 FDA FDA 16834160300 ...