{"product_id":"braun-series-3-replacement-foil-cutter-cassette-21b-black-restores-close-comfortable-shave","title":"Braun Series 3 Replacement Foil \u0026 Cutter Cassette - 21B Black, Restores Close Comfortable Shave","description":"\u003cp\u003e\u003cstrong\u003eThe Braun 21B Series 3 replacement foil and cassette cartridge restores your shaver’s cutting performance and comfort by replacing worn blades and foil every 18 months.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Series 3 shaver is pulling, nicking, or simply no longer delivering the close, comfortable shave you expect, worn cutting elements are usually the cause. Braun’s 21B replacement foil and cutter cassette is designed to bring older and new-generation Series 3 and cruZer clean shave models back to near-original efficiency without buying a whole new shaver. Swapping the foil and cutter is an inexpensive, simple maintenance step that keeps blade performance sharp and skin comfort high.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will replacement improve shave comfort?\u003c\/h3\u003e\n\u003cp\u003eInstalling a fresh 21B foil and cutter cassette typically reduces tugging and irritation almost immediately. Worn parts blunt over time, which increases friction and can cause uneven cutting. A new cassette restores smooth contact with skin for a more comfortable pass.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces hair pulling and micro-irritation\u003c\/li\u003e\n  \u003cli\u003eRestores consistent cutting performance\u003c\/li\u003e\n  \u003cli\u003eImproves glide for fewer passes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich shaver models are compatible with this replacement part?\u003c\/h3\u003e\n\u003cp\u003eThe 21B cartridge is compatible with both the current generation Series 3 models and older Series 3 units, as well as cruZer clean shave variants. Check your shaver’s model number against Braun compatibility lists or look for the same cassette shape to confirm fit. Using the correct cassette ensures secure attachment and optimal cutting geometry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits new-generation Series 3 shavers\u003c\/li\u003e\n  \u003cli\u003eWorks with older Series 3 models\u003c\/li\u003e\n  \u003cli\u003eCompatible with Braun cruZer clean shave shavers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I replace the foil and cutter cassette?\u003c\/h3\u003e\n\u003cp\u003eBraun recommends changing the foil and cutter cassette roughly every 18 months for average use to maintain peak performance. Frequency depends on beard thickness, shaving habits, and maintenance — heavier users may need earlier replacement. Regularly inspecting the foil for dents or the cutter for dullness helps you decide the right timing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGeneral guideline: replace every 18 months\u003c\/li\u003e\n  \u003cli\u003eReplace sooner with heavy, daily shaving\u003c\/li\u003e\n  \u003cli\u003eVisual signs: bent foil, reduced cutting efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what maintenance helps extend life?\u003c\/h3\u003e\n\u003cp\u003eReplacement is a straightforward, tool-free process: remove the old head, snap in the new cassette, and you’re ready to shave. Routine cleaning after each use removes stuck hairs and debris that speed wear. Occasional lubricating and proper storage also prolong the life of the new foil and cutter cassette.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTool-free swap — quick snap-in installation\u003c\/li\u003e\n  \u003cli\u003eRinse under running water after each use (if model supports wet cleaning)\u003c\/li\u003e\n  \u003cli\u003eOccasional light lubrication at cutter contact points preserves performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Braun 21B replacement foil and cassette is ideal for Series 3 and cruZer owners who want to restore shaving performance without replacing the entire shaver. It’s a cost-effective option for regular and heavy shavers, anyone seeking gentler, smoother daily shaves, and users who maintain their devices and prefer simple, fast upkeep. Keep your existing Braun shaver in top condition with an OEM replacement part engineered to match original fit and function.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the 21B cassette fit my Series 3 shaver?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 21B is compatible with new and older Series 3 models and cruZer clean shave shavers; confirm your head shape matches before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I know when to replace the foil and cutter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace roughly every 18 months, or sooner if you notice pulling, reduced cutting performance, or visible foil damage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Braun","offers":[{"title":"Default Title","offer_id":67554313765034,"sku":"B01N1QEVOT","price":94.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/8989\/6874\/files\/braun-21b-front-view-packaging.jpg?v=1790903866","url":"https:\/\/opulora.ca\/products\/braun-series-3-replacement-foil-cutter-cassette-21b-black-restores-close-comfortable-shave","provider":"OPULORA","version":"1.0","type":"link"}