Supplier: Pall Laboratory. Description: These 25 mm syringe filters offer an available prefiltration layer and wide choice of filter media. Certificates. ,28144-592CS,76308-634CS,76308-636PK,28143-936CS,28143-936PK,28144-584PK,28143-948CS,28143-948PK,28143-940CS,28143-940PK.