REI.com
  • Online: www.REI.com
  • URL for this product:
  • From the U.S. and Canada — Call 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • International — Call 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.

Print This Page

Camping & Hiking > Filters and Purifiers > Filter and Purifier Accessories > Katadyn Exstream Cyst Filter Cartridge 2-Pack (Item # 651544)

Katadyn Exstream Cyst Filter Cartridge 2-Pack
zoomZoom image

Katadyn Exstream Cyst Filter Cartridge 2-Pack

Item # 651544

$18.95

1.

2. Qty

3.

Free shipping with REI Store Pickup.
Shipping timeline, rates and more.

Share It
Email this to a friend Email this to a friend
Bookmark and share Bookmark and share

These Cyst Filter replacement cartridges are for Exstream Water Purification Bottles.

  • Filters sediment and protozoan organisms such as cryptosporidia and giardia
  • Package of 2 filters

Replacement parts for Exstream Water Purifiers. Change the ViruStat Cartridge after 200 refills. Change the Cyst and Pre/Post Filters when water flow becomes constricted.

Made in USA.

Item 651544

Things that work well with this item:

Join REI and Enjoy the Benefits

Members are eligible for an annual refund on qualifying purchases. Plus, they enjoy many more benefits. Get a lifetime membership for $20.

Add an REI membership to my order.

How are we doing? Give us feedback on this page.

  • Shopping Cart | 
  • Log In or Register | 
  • Store Locator | 
  • 1-800-426-4840
  • Sign up for REI Gearmail®
  • Get a coupon for 15% off one full-price item.
  • Details.
  • Continue
  • Store Locator
  • Enter your ZIP code to locate a store near you.