... : Polypropylene(pp)* O-ring seal:siliconeRemoval Rating:0.2μm,1.2μm,3μm,8μm,or customized ratingsDimension of Cartridge* Out Diameter:270mm ... -0.2-S,0.2μm, silicone sealDLHTF-1.2-S,1.2μm, silicone sealDLHTF-3-S,3μm, silicone sealDLHTF-8-S,8 ...