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MSR MiniWorks/WaterWorks Maintenance Kit



MiniWorks/WaterWorks Maintenance Kit

The MSR Water Filter Maintenance Kit gives you the necessary extra parts to fix your MiniWorks or WaterWorks Water Filters out in the field. This MSR maintenance kit includes extra O-rings, stoppers, instructions, and a carry case.
  • Item #CAS0483

maintenance kit
Recommended Use
hiking, weekend camping
Manufacturer Warranty
limited 3 years

Tech Specs

What do you think about this product?


>Rating: 4

What's missing?

I finally used this kit for my MiniWorks last year while out. All the O-rings had worn out. However, I bought it years ago. It had a new umbrella valve in it as the MSR site presently states. What it didn't have, at least in mine, was the spring that goes with the washer and duck bill valve. Although I didn't need to replace that, it's probably one of the easiest things to drop and lose. When I buy a new kit, I'll make sure I call MSR and have them send me anything that's missing, including the spring. They used to be real good about that stuff. Hopefully, they still are.

>Rating: 2

Water filter replacement parts

I returned this product before using it

Does not have ball in the parts. And that is what we need.

>Rating: 5

Rebuild kit necessary

Quality OEM maintainance kit for extended use and quality drinking water for those survival and camping trips. Drip coffee filters must be used prior to filtering to rid water of large particles from source water or damage and filter life dramatically reduced.

>Rating: 3

Good but no umbrella valve

I've used it once or twice and have initial impressions

After using my Miniworks filter for over 5 years the only part that needs to be replaced is the umbrella valve. As others have mentioned, it really seems the umbrella valve should be included in this kit, but it isn't. I found replacement umbrella valves at 3 pack for $6.

>Rating: 2

Does Not Contain the Umbrella Flap

The kit is fine. It has a lot of needed o-rings and stuff. I'm just sad because it didn't have the ONE piece that I need to fix my filter: the umbrella valve. Mine has been worn and damaged by sand. But no, the comprehensive maintenance kit does not contain the umbrella flap. Now what? I guess I need to contact MSR.

>Rating: 5

MSR maintenance kit Mini/Water works

The kit is straight forward replacement parts for the water filter. It contains the 'O' rings for the filter. What the kit does not contain is the umbrella valve for the 'Mini Works' filter. I called MSR about the missing valve. The reason the valve is not in the kit is because the umbrella valve is not replaced very often. This is a good thing! Although, I did call and was sent the valve just in case if it were to go bad in the backcountry. I have had my filter for 5 years and use it occasionally. No complaints. Keep the 'O' rings well greased to ensure proper seal. The kit is a must have in order to maintain your filter. If you spend the money for the filter you might as well buy the kit. You'll need it sooner or later. to quote a movie 'It's better to have it and not need it, then to need it and not have it.' This is for you WATER! You don't need any filter if you don't mind boiling all your water. How fun would that be going hiking and stopping every few hours to boil water? 5 stars

>Rating: 4

Water Works Maintenance Kit

Seems like the kit should contain the umbrella valve, hmmmm