{"product_id":"syringe-filters-pes-membrane-33mm-0-22um-sterile-pack-of-50","title":"Syringe Filters PES Membrane 33mm 0.22um Sterile Pack of 50","description":"\u003cp\u003eOur review of the Syringe Filters PES Membrane 33mm 0.22um examines a laboratory-grade disposable filter aimed at routine sterile filtration tasks. This pack of 50 delivers an accessible balance of performance and convenience: the key reason to buy is reliable sterile filtration with formal challenge-test validation, which makes these filters suitable for critical pre-filtration and buffer clarification where bioburden control and low extractables matter.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidated sterile filtration:\u003c\/strong\u003e Challenge test (BCT) with LRV\u0026gt;7 for Brevundimonas diminuta confirms high retention for small bacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiocompatible membrane:\u003c\/strong\u003e PES membrane certified to USP class VI reduces leachables and is appropriate for sensitive samples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSterile and individually packed:\u003c\/strong\u003e Each filter is gamma-sterilized and individually packaged to protect sterility until use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow and throughput:\u003c\/strong\u003e The large filtration surface gives excellent flow rate for faster processing of buffers and culture media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure, molded housing:\u003c\/strong\u003e Polypropylene housings are molded to provide a reliable seal without adhesives, reducing contamination risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard luer connections:\u003c\/strong\u003e Female luer-lock inlet and male luer slip outlet fit common syringe setups for straightforward use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Syringe Filters PES Membrane 33mm 0.22um is aimed at lab technicians, research groups, and production staff who need a dependable sterile filter for pre-filtration, mobile sample prep, and clarification of buffers and culture media. Its low protein affinity and low extractables make it well suited for assays or preparations where sample integrity matters.\u003c\/p\u003e\u003cp\u003eThose working with very viscous or particulate-heavy fluids may prefer a larger cartridge or a dedicated membrane system for higher capacity work; this product is best for syringe-scale filtration tasks rather than bulk inline filtration of large process volumes.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eValidated retention (LRV\u0026gt;7) offers confidence in sterile filtration performance.\u003c\/li\u003e\n\u003cli\u003eIndividually gamma-sterilized units keep filters ready-to-use and reduce handling contamination.\u003c\/li\u003e\n\u003cli\u003ePES membrane with USP class VI certification minimizes extractables and protein binding for sensitive applications.\u003c\/li\u003e\n\u003cli\u003eWell-designed luer fittings and molded housings ensure easy, leak-free connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePack size of 50 is optimized for frequent use; occasional users may find this quantity larger than needed.\u003c\/li\u003e\n\u003cli\u003eNot intended for high-viscosity or heavy particulate burdens where prefilters or larger housings would be needed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane material\u003c\/td\u003e\n\u003ctd\u003ePES (hydrophilic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePore size\u003c\/td\u003e\n\u003ctd\u003e0.22 um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e33 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterilization\u003c\/td\u003e\n\u003ctd\u003eGamma Radiation, individually packed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003ePolypropylene molded (no adhesives)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eFemale luer-lock inlet, male luer slip outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e50 filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Syringe Filters PES Membrane 33mm 0.22um in a pack of 50 is a practical, validated choice for labs needing reliable sterile filtration at syringe scale. Its challenge-test validation, USP class VI membrane certification, and individually gamma-sterilized packaging make it a good value for routine buffer preparation, media clarification, and analytical sample work where low extractables and dependable performance matter.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these filters sterile out of the package?\u003c\/strong\u003e\u003cbr\u003eYes, each filter is individually packaged and sterilized by gamma radiation to maintain sterility until opened.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size connections do the filters use?\u003c\/strong\u003e\u003cbr\u003eThe filters have a female luer-lock inlet and a male luer slip outlet for standard syringe compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the membrane suitable for protein solutions?\u003c\/strong\u003e\u003cbr\u003eThe PES membrane has low affinity for proteins and low extractables, making it appropriate for many protein-containing buffers, though very sticky samples may still benefit from prefiltration.\u003c\/p\u003e","brand":"Locofiltr","offers":[{"title":"Default Title","offer_id":48748951994587,"sku":"B0CS2QQCRC","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/7177Ob08EAL._AC_SL1500.jpg?v=1778796598","url":"https:\/\/gearmusthave.com\/products\/syringe-filters-pes-membrane-33mm-0-22um-sterile-pack-of-50","provider":"GearMustHave","version":"1.0","type":"link"}