Our Reservoir Cleaning Kit comes with two brushes: one long, thin brush and one shorter, wider brush. These are used to scrub different parts of your hydration reservoir.

The long, skinny brush is made to clean your drink tube. Keeping a finger in the hoop at the end of the brush, you can use the brush on the opposite end to scrub the inside of your drink tube. Note: When detaching your drink tube to clean, it's easiest to access the interior of your drink tube through the end with the bite valve.

The shorter, wider brush is used for scrubbing the interior of your reservoir. Simply hold on to the obvious handle, and use the bristled end to scrub at any visible dirt or residue inside your reservoir.

The Big Zip™ EVO Connector Kit is a nifty accessory that allows you to filter directly from your GravityWorks™ into your Big Zip EVO without ever having to remove your reservoir from your pack.

To do so, you first need to remove your drink tube from your reservoir via the quick-disconnect. Then, plug the connection point on the connector kit's hose directly into the quick-disconnect point (you will hear a click). Next, attach the connector kit's hose to the base of your GravityWorks filter cartridge. Let gravity do the rest, as you're now on your way to clean, taste-free hydration.

Watch this video for step-by-step instructions on how to use this product, CLICK HERE

Many replacement parts can be purchased directly from us online on our Accessories page or from one of our retailers. If you cannot find what you’re looking for, our customer support team can assist you:

• Submit a request through our Customer Support Portal.

For customers outside North America, please consult our International Distributor listings.