Giving back to those giving their all: COVID-19 update
Joining Forces to Support Our Communities

Our Cascade Designs family of brands is truly inspired by the heroic efforts put forth by our communities during this crisis—from the medical responders to the grocery store employees. Resolved to help, we’ve joined forces and refocused our manufacturing muscle to assist with making protective gear. Like so many, we wish to give back to those giving their all.

100,000 Level 1 Surgical Masks

Our Seattle production team quickly shifted gears to sew medical masks in response to the shortage of PPE for health care professionals. On April 30, we met our goal of 100,000 masks! The materials were provided by Kaas Tailored and the masks have been going to 51 Providence Hospitals, as part of their 100 million mask challenge.

Safety Gowns for Firefighters

Firefighters protect our lives; we’re humbled to help protect theirs. Working with King County Emergency Management, we’re using Therm-a-Rest mattress materials to help make protective gowns for local firefighters. The durable material is easily disinfected after each call, making the gowns reusable. It also withstands the harsh environments firefighters face far better than disposable gowns.

As a family of brands, we know how critical it is to help one another. We’re grateful to be part of an incredible community of adventurers—regardless of which uniform you wear to work. From all of us at Therm-a-Rest, MSR, SealLine, Platypus and PackTowl, let's keep doing our part, so we can see each other on the trails once again.

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SE200™ Chlorine Residual Test Strips

SE200™ Chlorine Residual Test Strips

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50-Count Chlorine Residual Test Strips These test strips will help you determine if the water you have treated has a safe chlorine residual. Their test range is from 0 to 5 ppm. The target concentration range is 0.2 to 2 ppm, 30 minutes after treating the water. Instructions for use included on the bag.
What kind of salt does the SE200 Chlorine Maker require?

Any kind of table salt (no MSG or other non-NaCl flavor substances). We’ve used brown rock salts in Thailand and flakey salts from fancy restaurants. It all works. However, larger grained salt may require the user to mix more salt into the salt brine bottle. This is also true for rock salt. Some salts have preservative agents that take up space. These also may require more salt mixed into the salt brine bottle, than the instructions recommend. Simply remember: If you get a low salt light, just add more salt!

How long can I keep the salt brine mixture?

It’s best to use it within one year.

How long will the solution with a chlorine concentration last? That is, what’s its shelf life?

It’s best to use it within about 24 hours.

How do I make a disinfection solution for my hands and surfaces?

Make one batch of chlorine in the SE200 Community Chlorine Maker (50 mL) and add it to 750 mL of plain tap water, creating a total of 800 mL of hand-washing solution. The chlorine concentration of this solution is 500 mg/L, which is what the CDC and WHO recommend for hand washing.

For surface sanitization, the CDC and WHO recommend using a solution with a chlorine concentration of 1,000 mg/L. They recommend spraying the surface enough to fully wet the entire surface, and then letting it air dry. To create this solution, make one batch of chlorine (50 mL) and add it to 350 mL of plain tap water, creating a total of 400 mL of surface sanitizing solution.

What kind of battery do I need to operate the SE200 Chlorine Maker?

Any 12 volt battery over 7 amp-hours. These are typically motorcycle or car batteries and range from 7 amp-hours to 80 amp-hours (though you can find them even bigger). 

Don’t forget to buy a charger at the time that you buy the battery. Ask the store owner which charger to use with your battery.

What kind of fuse is in the fuse case on the SE200 cord?
A 5 amp fuse.
How do I know the water is safe to drink after treating it with the SE200 Chlorine Maker?
Use the chlorine test strips provided. The SE200 kit comes with 10 chlorine test strips that will help you determine if the water has a safe chlorine residual. You can use any chlorine test strips that test in a range from 0-5ppm. The target concentration range is 0.2 to 2 ppm, 30 minutes after treating water.
What do I do if my SE200 Chlorine Maker breaks?

First, check the troubling-shooting options for common issues. You may just need to charge your battery, or add more salt (the two most common problems). 

If your device still isn’t working, and you suspect it’s a manufacturer’s defect, please email or call 1-800-531-9531. Whatever the issue is, our customer service department will help you figure out what is wrong and what to do about it.

How can I get replacement chlorine test strips?
You can use any pool chlorine test strips on the market that test a range of 0-5ppm.
Can I use wall power with the SE200 Chlorine Maker instead of a car battery?
Yes. You can purchase a power supply.
Does the SE200 Chlorine Maker come with a warranty?
Yes, it comes with a one year limited warranty that protects against manufacturer defects. If something is not working properly, MSR Global Health wants to hear about it.
What kind of water does the SE200 Chlorine Maker require?
Any water that you’re planning to drink after treatment. Start with the clearest water possible, and avoid extremely murky or sludgy water.

We Believe in What We Build

We know that in the backcountry, reliable gear is critical. That’s why MSR gear has always been engineered to the highest quality standards and rigorously tested before it reaches you.

Seattle Repair Shop

If your MSR gear is in need of repair, please contact our Seattle Repair Shop at 1-800-245-2992 and our technicians will work to find you a solution as quickly as possible. A majority of the time, MSR products can be repaired.


If you are experiencing an issue that you feel falls under the MSR Limited Warranty, we’re here to help with that too. Please contact our team to get started.

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