{"product_id":"lifestraw-flex-with-gravity-bag","title":"LifeStraw Flex with Gravity Bag","description":"\u003cp\u003eFilter without a pump using the LifeStraw Flex and 1-gallon gravity bag, combining membrane and carbon stages with separate replacement and care schedules.\u003c\/p\u003e\u003cp\u003eThe membrane is rated for up to two thousand liters, while the carbon stage is rated for up to one hundred liters or approximately two months of regular use. Plan the membrane and carbon replacements on their separate schedules. Backwash and store the Flex according to its manual.\u003c\/p\u003e\u003ch3\u003eKey details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded reservoir:\u003c\/strong\u003e 1-gallon gravity bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated membrane life:\u003c\/strong\u003e Up to 2,000 liters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon-stage service life:\u003c\/strong\u003e Up to 100 liters or about 2 months with regular use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower source:\u003c\/strong\u003e Gravity; no batteries or electrical supply\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eThe membrane and carbon stage have separate service-life ratings and target different contaminants. The membrane addresses bacteria, parasites and microplastics, while the carbon stage also addresses the tested lead, chlorine and taste-related performance in its data sheet. Use the exact Flex instructions; this is not the newer Peak Gravity system.\u003c\/p\u003e\u003ch2\u003eWhat’s included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifeStraw Flex filter\u003c\/strong\u003e — Membrane and carbon stages; complete kit pictured\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-gallon gravity bag\u003c\/strong\u003e — Included reservoir\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-connect hose\u003c\/strong\u003e — Connects the bag and filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackwash syringe\u003c\/strong\u003e — For membrane cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cdl\u003e\n\u003cdt\u003eIncluded reservoir\u003c\/dt\u003e\n\u003cdd\u003e1-gallon gravity bag\u003c\/dd\u003e\n\u003cdt\u003eMembrane pore size\u003c\/dt\u003e\n\u003cdd\u003e0.2 micron\u003c\/dd\u003e\n\u003cdt\u003eRated membrane life\u003c\/dt\u003e\n\u003cdd\u003eUp to 2,000 liters\u003c\/dd\u003e\n\u003cdt\u003eCarbon-stage service life\u003c\/dt\u003e\n\u003cdd\u003eUp to 100 liters or about 2 months with regular use\u003c\/dd\u003e\n\u003cdt\u003ePower source\u003c\/dt\u003e\n\u003cdd\u003eGravity; no batteries or electrical supply\u003c\/dd\u003e\n\u003c\/dl\u003e\u003ch2\u003eSetup, use and care\u003c\/h2\u003e\u003cp\u003eRinse the parts and backwash the new filter at least five times before first use. Fill and close the gravity bag, connect the hose and release trapped air as shown in the manual. Keep the outlet and clean-water container free from contamination.\u003c\/p\u003e\u003cp\u003eBackwash at least twice daily during use. Follow the separate long-term storage guide when storing a used filter. Do not use for brackish water or seawater, and protect the filter from freezing and excessive heat.\u003c\/p\u003e\u003ch2\u003eProduct questions\u003c\/h2\u003e\u003ch3\u003eDoes the kit need a pump or electricity?\u003c\/h3\u003e\u003cp\u003eNo. The one-gallon bag feeds water through the connected Flex filter using gravity.\u003c\/p\u003e\u003ch3\u003eHow do the two filter stages differ?\u003c\/h3\u003e\u003cp\u003eThe membrane targets bacteria, parasites and microplastics. The activated-carbon\/ion-exchange stage reduces lead and chlorine and improves taste. Read the linked performance sheet for the tested contaminants.\u003c\/p\u003e\u003ch3\u003eHow long do the filters last?\u003c\/h3\u003e\u003cp\u003eThe membrane is rated for up to 2,000 liters. The carbon stage is rated for up to 100 liters, or about two months of regular use. Actual service life varies with water quality and maintenance.\u003c\/p\u003e\u003ch3\u003eHow do I prepare it for its first use?\u003c\/h3\u003e\u003cp\u003eRinse the components with clean water, then backwash the filter with the included syringe at least five times. Follow the gravity-bag assembly steps in the manual.\u003c\/p\u003e\u003ch3\u003eIs this the Peak Gravity system?\u003c\/h3\u003e\u003cp\u003eNo. This listing is the LifeStraw Flex kit with its one-gallon gravity bag. Use model-specific Flex parts and instructions.\u003c\/p\u003e\u003ch2\u003eManuals and product documents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2631\/0778\/t\/4\/assets\/LifeStrawFlexGravityBagUsermanual-1542722740246.pdf?3575683193276237411\"\u003eLifeStraw Flex gravity-bag user manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2631\/0778\/files\/LifeStraw_Flex_-_Filtration_Performance_Sheet.pdf?v=9714409159214723427\"\u003eLifeStraw Flex performance data (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2631\/0778\/files\/LifeStraw_Flex_Long_Term_Storage_and_Unclogging.pdf?v=1665683740\"\u003eLifeStraw Flex storage and unclogging (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LifeStraw","offers":[{"title":"Default Title","offer_id":67657460941092,"sku":"EWL-027","price":49.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/5843\/2548\/files\/sa-72hours-lifestraw-5-0-oct09.jpg?v=1791567050","url":"https:\/\/patriotreserve.com\/products\/lifestraw-flex-with-gravity-bag","provider":"Patriot Reserve","version":"1.0","type":"link"}