{"product_id":"filtrabox-pre-filter-fits-expand-1-expand-2-expand-3","title":"Filtrabox Pre-Filter — Fits Expand 1, Expand 2, Expand 3","description":"\u003ch2\u003eFiltrabox Pre-Filter\u003c\/h2\u003e\n\u003cp\u003eGenuine Filtrabox replacement F9 pre-filter cartridge. Compatible with: Expand 1, Expand 2, Expand 3.\u003c\/p\u003e\n\u003cp\u003eThe pre-filter removes the majority of the submicronic respirable dust, protecting the critical downstream HEPA filter from strain and premature clogging. The filter media is encased in a strong aluminum cartridge to resist contamination bypass. The high surface area mini-pleat filter media ensures high capacity and efficiency.\u003c\/p\u003e\n\u003cp\u003eAll Filtrabox filter cartridges use a thick aluminum box structure to resist flex under the high negative pressure Filtrabox's vacuum blowers generate, so the rubber seals maintain contact with the sealing surfaces and prevent contaminant leakage — unlike cardboard-cased filters, which flex and crumple under pressure.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/3681\/6793\/files\/TM22-Filters-Cutaway_e0fdc317-222f-4e0f-b8bf-d95ab5875a31.jpg?v=1787625019\" alt=\"Filtrabox Filter Cutaway\" style=\"max-width:100%;height:auto;\"\u003e","brand":"Filtrabox","offers":[{"title":"Default","offer_id":48847621423257,"sku":"FIL-P-EX-422","price":435.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/3681\/6793\/files\/TM22-Filters-Cutaway_cc6537e4-da43-492a-b0c9-95ba0099303a.jpg?v=1786304643","url":"https:\/\/techforgedirect.com\/products\/filtrabox-pre-filter-fits-expand-1-expand-2-expand-3","provider":"TechForge Direct","version":"1.0","type":"link"}