{"product_id":"filbur-fc-3525-spa-and-pool-replacement-filter-cartridge-for-clean-water-and-easy-maintenance","title":"Filbur FC-3525 Spa and Pool Replacement Filter Cartridge for Clean Water and Easy Maintenance","description":"\u003cdiv\u003e\n\u003cp\u003eKeep your spa and pool at peak clarity with the Filbur FC-3525 Spa\/Pool Replacement Filter Cartridge. Built for performance and designed to outlast typical filters, this cartridge is a trusted choice for households that demand reliability in saltwater and chlorine-rich environments. As a leading OEM filter manufacturer in the USA, Filbur combines durable materials with smart engineering to deliver filtration you can count on season after season.\u003c\/p\u003e \u003ch2\u003eWhat makes the FC-3525 stand out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReinforced center cores\u003c\/strong\u003e—extruded PVC cores provide even stress distribution and prevent collapse under heavy debris loading, extending time between cleanings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePremium filter media\u003c\/strong\u003e—durable, high-quality polyester media delivers long life, maintains water clarity, and supports efficient filtration performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAntimicrobial end caps\u003c\/strong\u003e—reinforced for strength and treated to repel odor-causing bacteria and mold, helping keep your system cleaner between cleanings. The formulation also resists deterioration from salt pools and high chlorine levels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWider support bands\u003c\/strong\u003e—enhanced break-resistance keeps pleats evenly spaced for consistent flow and reduces pleat flutter caused by turbulence in the housing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnd caps with integrated fittings\u003c\/strong\u003e—molded-in fittings simplify installation and removal, eliminating the need for PAD adapters that can reduce flow and filtration efficiency.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSharp pleat folds\u003c\/strong\u003e—advanced synthetic fiber construction minimizes bridging, allowing more dirt to reach deeply into the pleats for stronger filtration and easier cleaning.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEmbossed part numbers\u003c\/strong\u003e—clear identification makes re-ordering quick and hassle-free.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this filter matters for your water\u003c\/h2\u003e\n\u003cp\u003eThe FC-3525 isn’t just a replacement cartridge—it's a filtration upgrade. The combination of reinforced center cores, antimicrobial end caps, and rugged media translates to:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eLonger life between replacements, saving you time and money\u003c\/li\u003e \u003cli\u003eBetter water clarity, even in challenging salt and chlorine environments\u003c\/li\u003e \u003cli\u003eImproved filtration efficiency due to deeper pleats and more consistent flow\u003c\/li\u003e \u003cli\u003eMore dependable performance in spas and pools with high debris load\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho should consider the Filbur FC-3525\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eHomeowners with spa systems or in-ground pools that use saltwater or high-chlorine maintenance regimes\u003c\/li\u003e \u003cli\u003ePeople seeking a reliable OEM replacement known for durability and easy installation\u003c\/li\u003e \u003cli\u003eOwners wanting fewer maintenance interruptions and longer intervals between cartridge cleanings\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical use and maintenance tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eBefore installing, inspect the cartridge to ensure the end caps and fittings are undamaged. The integrated fittings simplify setup and reduce the chance of flow-restricting adapters.\u003c\/li\u003e \u003cli\u003eRinse the filter cartridge with a gentle stream of water to remove loose debris before placing it back in the housing.\u003c\/li\u003e \u003cli\u003eAvoid using high-pressure or aggressive cleaners on the pleats to preserve the sharp folds and filtration efficiency.\u003c\/li\u003e \u003cli\u003eFollow your system’s recommended cleaning schedule; a good rule of thumb is to inspect and rinse when flow reduces or pressure rises noticeably.\u003c\/li\u003e \u003cli\u003ePair with compatible spa\/pool care routines for best results in salt pools or chlorine-heavy environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Filbur FC-3525 for a replacement cartridge that’s built to last, installs easily, and keeps your water sparkling clear with sustained, dependable performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":40241549049898,"sku":"FC-3525","price":72.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/4014\/1354\/products\/17-175-1847_xl.jpg?v=1769976126","url":"https:\/\/bathparts.com\/en-um\/products\/filbur-fc-3525-spa-and-pool-replacement-filter-cartridge-for-clean-water-and-easy-maintenance","provider":"Bath \u0026 Spa Superstore","version":"1.0","type":"link"}