{"product_id":"wasserfilter-strohhalm-fur-wanderer-4000-l","title":"Water filter straw for hikers, 4000 L","description":"\u003cp\u003e\u003cstrong\u003eNo clean water within reach while on the go—and the next source is unknown.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnyone spending several days in the wilderness often carries liters of packaged water—unnecessary weight in their backpack. Natural streams and springs sound like a solution, but without the right equipment, the risk remains. The FlowTrek water filter straw filters up to 4,000 liters of water from natural sources through a 0.1-micron membrane—ready to drink immediately, with no pump and no waiting.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/7187\/3410\/files\/Screenshot_2026-07-23_023720_480x480.png?v=1784745462\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo more carrying heavy water supplies:\u003c\/strong\u003e Anyone who used to rely on water supplies during multi-day trips will no longer have to carry that weight—natural sources become a reliable supply of drinking water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo complicated setup:\u003c\/strong\u003e Thanks to the 28 mm universal thread, the straw fits standard bottles and the included collapsible bag—the switch takes seconds, not minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo worries about filter quality:\u003c\/strong\u003e The integrated pre-filter membrane removes suspended solids and particles from natural bodies of water—a backflush system extends the service life without requiring regular replacement parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Portable water filter straw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Camping, hiking, outdoor survival\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter capacity:\u003c\/strong\u003e Up to 4,000 liters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration level:\u003c\/strong\u003e 0.1 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread size:\u003c\/strong\u003e 28 mm (universal thread)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 160 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraw length:\u003c\/strong\u003e 15 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraw diameter:\u003c\/strong\u003e 4 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBag capacity:\u003c\/strong\u003e 500 ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Army green or sea blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Plastic, activated carbon, ultrafiltration membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/7187\/3410\/files\/Screenshot_2026-07-23_023705_480x480.png?v=1784745462\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect:\u003c\/strong\u003e Screw the straw with the 28 mm thread directly onto a standard bottle or the included collapsible bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter:\u003c\/strong\u003e Suck the water from the bottle through the straw—the membrane removes suspended solids and particles as the water flows through.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackflush:\u003c\/strong\u003e After use, remove the straw from the bottle neck and backflush the membrane by blowing firmly into the mouthpiece to preserve its filtering performance over the long term.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003ePro tip:\u003c\/strong\u003e Backflush the straw immediately after every use in the field—this keeps the flow rate consistently high and noticeably extends the membrane’s service life, especially with cloudy spring water.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sovora","offers":[{"title":"Sea blue","offer_id":56769170538882,"sku":null,"price":48.95,"currency_code":"EUR","in_stock":true},{"title":"Army green","offer_id":56769170571650,"sku":null,"price":48.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/7187\/3410\/files\/Nordspur_FlowTrek_Portable_Outdoor_Water_Filtration_Straw_1.jpg?v=1784134782","url":"https:\/\/sovora-shop.com\/en-ie\/products\/wasserfilter-strohhalm-fur-wanderer-4000-l","provider":"Sovora","version":"1.0","type":"link"}