what will it filter out of the water toxins like cripto ect

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.

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?

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

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.)

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.

Where can you buy replacement gaskets and filters, hoses, etc., etc. ??

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.

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💦 Drink Fearlessly, Explore Limitlessly

BUILT TO ENDURE - Lightweight, compact design with a replaceable filter that treats up to 2,000 liters—ready for every expedition.
SURVIVAL GRADE SAFETY - NSF P231 certified to eliminate 99.9999% of bacteria and 99.9% of protozoa—trust your water, trust your adventure.
UNIVERSAL COMPATIBILITY - Fits wide-mouth bottles and hydration bladders for seamless integration into your gear.
EFFORTLESS PUMPING POWER - Pumps a full liter per minute, keeping pace with your thirst and your pace.
PURE HYDRATION ON DEMAND - Microfilter tech delivers clean, odorless water anywhere you roam.

The MSRMiniWorks EX Backcountry Water Filter is a compact, lightweight microfilter pump designed for hiking, camping, and emergency use. It features a replaceable carbon and ceramic filter that removes 99.9999% of bacteria and 99.9% of protozoa, delivering clean, odor-free water at a rate of 1 liter per minute. Compatible with wide-mouth bottles and hydration bladders, it treats up to 2,000 liters per cartridge and meets NSF P231 standards, backed by a limited lifetime warranty and made in the USA.

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Brand	MSR
Model Number	56425
Color	Grey/Red
Product Dimensions	25.4 x 10.16 x 17.78 cm; 450 g
Capacity	1 LPM
Material	Plastic
Special Features	Chlorine Reduction, NSF certified
Item Weight	450 g

MSRMiniWorks EX Backountry Water Filter

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