--- product_id: 259684427 title: "MSR MiniWorks EX Backountry Water Filter" brand: "msr" price: "NZ$582" currency: NZD in_stock: true reviews_count: 5 category: "Msr" url: https://www.desertcart.nz/products/259684427-msr-miniworks-ex-backountry-water-filter store_origin: NZ region: New Zealand --- # 1 L/min flow rate 2,000L filter lifespan 99.9999% bacteria removal MSR MiniWorks EX Backountry Water Filter **Brand:** msr **Price:** NZ$582 **Availability:** ✅ In Stock ## Summary > 💧 Filter Fearlessly, Adventure Limitlessly ## Quick Answers - **What is this?** MSR MiniWorks EX Backountry Water Filter by msr - **How much does it cost?** NZ$582 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/259684427-msr-miniworks-ex-backountry-water-filter) ## Best For - msr enthusiasts ## Why This Product - Trusted msr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Replaceable ceramic-carbon filter treats up to 2,000 liters—your ultimate backcountry companion. - • **Compact Powerhouse:** Lightweight (1 lb) and portable design fits seamlessly into your adventure gear. - • **Trusted & Certified:** NSF P231 certified and backed by a limited lifetime warranty—quality you can count on. - • **Next-Level Filtration:** Removes 99.9999% of bacteria & 99.9% of protozoa for safe, odorless water anywhere. - • **Pure Hydration On Demand:** Pump up to 1 liter of clean water per minute—stay refreshed without the wait. ## Overview The MSR MiniWorks EX Backcountry Water Filter is a rugged, portable microfilter pump designed for hiking, camping, and emergency use. It delivers 1 liter per minute of clean, great-tasting water by removing 99.9999% of bacteria and 99.9% of protozoa through a replaceable ceramic and carbon filter with a 2,000-liter lifespan. Compact and lightweight, it fits most wide-mouth bottles and hydration bladders, is NSF certified, and comes with a limited lifetime warranty—all proudly made in the USA. ## Description The MSR MiniWorks EX Microfilter Water Filter provides proven, reliable water filtration for camping and hiking, backcountry adventures, global travel, survival situations, and emergencies. The replaceable Marathon EX ceramic element removes bacteria (such as E. coli. Shigella, salmonella, cholera), protozoa (such as giardia, cryptosporidium, amoebae), and particulate, and its carbon core eliminates unpleasant tastes and odors caused by organic compounds such as iodine, chlorine, and pesticides. Thanks to its innovative AirSpring Accumulator, the microfilter is capable of pumping one liter of water per minute, a flow rate that is easily maintained in the field, without any tools. The MSR MiniWorks EX Microfilter meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%), throughout its replaceable filter life of 2,000 liters of water. Compatible with a wide variety of water containers such as Nalgene, Camelback, and MSR Dromedary Bags (sold separately); bottom screws on to threaded lids, or water can be pumped directly into a hydration reservoir drinking tube. Lightweight and compact, the pump measures 7.5 x 2.75 inches and weighs one pound. A storage bag is included. Manufacturer’s limited lifetime warranty. Made in the USA. Review: 良い商品です Review: I pumped many liters of water through this and had to replace the filter. The second was going strong before it was washed away in a flood! Even after daily use for the best part of two years the filter showed no signs of age. They are an absolute workhorse of a filter. The only problem really is that if you are filtering water which has a lot of sediment the filter gets blocked quickly and needs cleaning. However, this isn't too difficult and can be done in the field. You just need to take care not to cross-contaminate the filtered section with the dirty one. Note that you really need to scrub the filter so you actually remove a layer of the filter because this also removes the blocked pours. I highly recommend this filter. It removes everything from the water accept for viruses and even bad tastes from treated or unpleasant water sources. I used it in the wild but also in cheap hotel rooms and from tap water from gas stations etc, it never let me down and I never got sick in over three years of travel in Latin America. ## Features - Microfilter water filter pump for hiking, backpacking, camping, travel, survival, and emergency preparedness - Replaceable carbon and ceramic filter removes bacteria, protozoa, organic compounds, and particulate, delivering clean, taste and odor-free water - Pumps at a rate of one liter per minute; compatible with a variety of wide mouth water bottles, and hydration bladders (sold separately) - Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%); one replaceable filter cartridge treats up to 2,000 liters of water - Pump measures 7.5 x 2.75 inches and weighs 1 pound; storage bag included; manufacturer’s limited lifetime warranty; made in the USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BBF2RY | | Brand Name | MSR | | Capacity | 1 LPM | | Container Type | Pitcher | | Customer Reviews | 4.6 4.6 out of 5 stars (1,462) | | Global Trade Identification Number | 00040818564257 | | Included Components | Storage bag, Replaceable filter cartridge | | Installation Type | Portable | | Item Dimensions L x W x H | 25.4L x 10.2W x 17.8H centimeters | | Item Weight | 0.45 Kilograms | | Item Width | 7 Centimeters | | Manufacturer | MSR | | Material Type | Ceramic | | Maximum Flow Rate | 1 Liters Per Minute | | Model Name | MiniWorks EX Filter | | Model Number | 040818564257 | | Other Special Features of the Product | Chlorine Reduction, NSF certified | | Power Source | Manual Winding | | Purification Method | Mechanical Filtration | | Supported Water TDS Level Maximum (PPM) | 500 | | UPC | 040818564257 | | Unit Count | 1 Count | ## Product Details - **Brand:** MSR - **Capacity:** 1 LPM - **Material:** Ceramic - **Product dimensions:** 25.4L x 10.2W x 17.8H centimeters - **Special features:** Chlorine Reduction, NSF certified ## Images ![MSR MiniWorks EX Backountry Water Filter - Image 1](https://m.media-amazon.com/images/I/81We+XFRfXL.jpg) ![MSR MiniWorks EX Backountry Water Filter - Image 2](https://m.media-amazon.com/images/I/71fKfFVMa8L.jpg) ![MSR MiniWorks EX Backountry Water Filter - Image 3](https://m.media-amazon.com/images/I/81bVZ3aSj1L.jpg) ![MSR MiniWorks EX Backountry Water Filter - Image 4](https://m.media-amazon.com/images/I/91EPczoErkL.jpg) ![MSR MiniWorks EX Backountry Water Filter - Image 5](https://m.media-amazon.com/images/I/91SfJm3Y60L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: what will it filter out of the water toxins like cripto ect** A: Run your water through this filter to get all heavy metal. Afterward, boil your water to 100 c. It’ll kill all bacteria, viruses, and protozoan. **Q: Am I correct that this fits with dromedary bag? And if I buy those, a maintenance kit and ceramic element, anything else I need to buy to use this?** A: yes it fits msr bags also nalgene steel bottle (1778 1002) the top is the same size to match pump also ok for use with fire/stove **Q: Does the filter have to be dry before you put it away? (Not for long-term storage but for daily use storage when on a multi-day hike.)** A: No their will be no problem with no keeping it dry for a few days. as long as the filtration system is in use it will not have enough time for mold or any other fungus to build up on the filter. though I would suggest thoroughly cleaning the system to msr specific instructions at the return and storage of the unit. **Q: Where can you buy replacement gaskets and filters, hoses, etc., etc. ??** A: The hose is 3/16" ID (inner diameter), 5/16" (outer diameter) food-grade silicone tubing. It can be found on Amazon, Ebay or online. A brand called Venair makes Veno Technoex tubing and it is a drop in replacement, if not better quality. Other brands are SILCON, Tygon, US Plastics Corp. If you see platinum cured tubing as advertised it is better than peroxide cured versions for preventing any kind of build up in the tube, it is supposed to have a far smoother inner surface. Averages $1.30/foot. Can be ordered via McMaster-Carr or in my case I found it locally at Canal Rubber in NYC. You would be best served actually calling some brick and mortar commercial plumbing supply stores and asking first rather than swimming around online as this product is used commonly in food service and a brick and mortar counter is likely to cut you 10' no problem. Do NOT use vinyl or other types of tubing other than FDA graded Food Grade silicone tubing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by 父***父 on 4 December 2025* 良い商品です ### ⭐⭐⭐⭐⭐ Review *by H***E on 1 June 2016* I pumped many liters of water through this and had to replace the filter. The second was going strong before it was washed away in a flood! Even after daily use for the best part of two years the filter showed no signs of age. They are an absolute workhorse of a filter. The only problem really is that if you are filtering water which has a lot of sediment the filter gets blocked quickly and needs cleaning. However, this isn't too difficult and can be done in the field. You just need to take care not to cross-contaminate the filtered section with the dirty one. Note that you really need to scrub the filter so you actually remove a layer of the filter because this also removes the blocked pours. I highly recommend this filter. It removes everything from the water accept for viruses and even bad tastes from treated or unpleasant water sources. I used it in the wild but also in cheap hotel rooms and from tap water from gas stations etc, it never let me down and I never got sick in over three years of travel in Latin America. ### ⭐⭐⭐⭐ Review *by A***A on 28 August 2015* Utilizzato per un trekking in Mustang di sedici gg. Ha fatto il suo dovere ottimamente. nb: per mantenere inalterato nel tempo il flusso di 1lt al minuto, occorre periodicamente pulire il filtro ## Frequently Bought Together - MSR MiniWorks EX Backountry Water Filter - MSR MiniWorks/WaterWorks Replacement Ceramic Element - Nalgene Sustain Tritan BPA-Free Water Bottle Made with Material Derived From 50% Plastic Waste, 32 OZ, Wide Mouth, Gray w/ Black Lid --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/259684427-msr-miniworks-ex-backountry-water-filter](https://www.desertcart.nz/products/259684427-msr-miniworks-ex-backountry-water-filter) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-05-02*