{"product_id":"best-gravity-water-filter-backpacking","title":"Best gravity water filter backpacking","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo pump or batteries\u003c\/strong\u003e: 3 L reservoir feeds by gravity at 800 ml per minute.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraps fine suspended matter\u003c\/strong\u003e: hollow fibre ultrafiltration membrane with a precision of 0.01 μm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks at any freshwater source\u003c\/strong\u003e: intended for lakes, streams, rainwater and mountain springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanable in the field\u003c\/strong\u003e: supplied syringe pushes clean water back through the membrane when flow drops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNothing else to buy\u003c\/strong\u003e: water bag, filter, shut off clip, carabiner, syringe, extension tube and hanging strap included.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Military Surplus","offers":[{"title":"Default Title","offer_id":54018501345607,"sku":"FLM-10820242669895","price":44.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/6984\/8135\/files\/2026-05-29T123352.774.png?v=1780043678","url":"https:\/\/surplus-military.com\/products\/best-gravity-water-filter-backpacking","provider":"Military Surplus","version":"1.0","type":"link"}