Grayl GeoPress One-Way Valve - Replacement valve compatible with Grayl GeoPress water filter with bottle.

The GeoPress bottle features an integrated one-way valve that allows you to add electrolytes, drink mixes, and other flavoring liquids directly into your GeoPress.

The valve is located in the filter and ensures that water does not flow back into the filter, allowing you to add flavor or anything you like to your purified drinking water without affecting the filter.

This valve fits the GeoPress water filter.

You can also find the one-way valve for the Ultrapress water filter, which is slightly smaller than the GeoPress.

Find all water filtration gear from The Grayl here

The valve is dishwasher safe.

Specifications for Grayl GeoPress One-Way Valve:

Weight: 10 g

Material: BPA-free silicone