GEOPRESS® One-Way Silicone Valve
GEOPRESS® One-Way Silicone Valve
GEOPRESS® One-Way Silicone Valve
GEOPRESS® One-Way Silicone Valve

GEOPRESS® One-Way Silicone Valve

$12.00
/
Shipping calculated at checkout.

A feature no other drink-thru filter bottle can deliver, the GeoPress® One-Way Valve allows electrolytes and sport drink mixes to be added to clean purified water without compromising the integrity of the filter.

Only compatible with 2nd Generation cartridges first sold in April 2023 that include a new "core" and "flow channel" design (horizontal vents).

  • Enjoy a drink-mix no matter where your adventure takes you. Replace electrolytes lost in sweat and hydrate quickly.
  • Six duck bill valves prevent back flowing of water (or other beverages) through the Cartridge while also allowing clean filtered water to pass through the Cartridge into the Inner Press.
  • Easy to remove for care and use between uses. Thoroughly dry a wet Cartridge by pressing into an empty (no water) Outer Cup, then dump any excess water. Remove the One-Way Valve and allow Cartridge to air-dry thoroughly (depending on humidity it will take 2-4 days to completely dry). Clean and dry the One-Way Valve, then reassemble GeoPress Bottle.
  • One-way valve is dishwasher safe. Regularly wash Valve between uses to remove smell and residue left behind from powders or other beverages. Hand wash with warm, soapy water or place in a dishwasher. Do not expose Cartridge to soap or cleaning agent of any kind.
  • Size: 2.25" (5.8 cm) H x 1" (2.6 cm ) W
  • Weight: .42 oz (12 g)
  • Compatibility. Only compatible with GeoPress® bottles and cartridges sold on Grayl.com in Spring 2023 that feature a 2nd generation cartridge with horizontal flow channels (stacked in groups of six). 1st generation cartridges will not be able to accommodate a valve.
  • BPA-Free Materials. Made from food-grade silicone.
  • Origin. Designed in USA, made in China.

Warranty: One-Way Silicone Valve is accompanied by a ten (10) year warranty covering workmanship and materials.

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Overall rating: 4.911792 / 5 from 1077 reviews.

AI Generated Review Summary

The GEOPRESS® One-Way Silicone Valve is praised for its high-quality design, excellent filter performance, and great taste. Customers appreciate the ease of use and the ability to add electrolytes without compromising the filter's integrity. The product is also noted for its compatibility with specific cartridges and its suitability for long-term purification needs.

Summary topics

  • Purifier Performance: 5%
  • Replacement Cartridges: 3%
  • Filter Performance: 21%
  • Water Taste: 6%
  • Product Quality: 4%

Review topics: ["size","fit","color","issues","weight","quality","looks","addition","design","customer service","packaging","shipping","wife","difference","solution","service","plastic","light","price","water","filter","purifier","tasting","system","works","bottle","use","cartridge","replacement","life"].

Review highlights

  • "Easy peasy and clean tasting water." — Eric N.
  • "Being able to make clean tasting water was important, got the person to keep drinking water and electrolyte mixes." — Chris S.
  • "Like a French press for clean water that taste great too!" — Rudy J.

Reviews

Great for disperse camping

"Went on a extended trip into the wild with only the Geopress Ti for drinking water. Filtered from a muddy river with a lot of sediment without any issues. No taste to speak of. Ti version was high quality and looks to hold up for a long time."

— Michael F. (5/5)

Geo press cartridge

"I purchased additional cartridges for my bottles. I am stocking up for the future and will buy a couple more soon. Product is very easy to use and takes up very little space in your luggage or carry-on. I travel overseas with these bottles and have clean water everywhere I go. With the uncertainty of the water supply with mother nature events and everything else going on in the world I am confident I will have clean water wherever I go."

— Linn S. (5/5)

From Everyday Carry to Thru-Hikes — My Go-To Water System

"I absolutely love the Grayl system and honestly use it every single day. For long thru-hikes, I carry the 16 oz titanium version for cooking, and paired with a PocketRocket, it’s become my go-to setup — simple, lightweight, and really all I need. I also use the larger plastic version for everyday use. After years of use, I can confidently say Grayl has become one of my favorite and most trusted filtration systems out there. Reliable, versatile, and by far one of the best water filtration systems I’ve used."

— Trevor H. (5/5)

You need this

"Best thing since water . Feel safe knowing your water is the safest it can be when you’re not around reliable sources. It maybe larger than the mini filters but much easier and faster to get water"

— Jeff V. (5/5)

Geo water bottles

"I don’t like the bottles they’re too hard to take apart to refill not eco-friendly I want to return the bottles"

— Paul P. (5/5)

Geo press replacement filter

"Product looks well made. The purification process looks easy to use. Needed a replacement filter for my Geo press as a standby when needed . bought 2 when a price savings was offered"

— David S. (5/5)

Excellent Filter

"Backpacked the Paria Canyon using the filter from the few springs along the 40 mile hike. It worked great but it takes longer than 8-10 seconds as they state. More like 25-30 seconds and that’s from clear water and a new cartridge."

— Tom P. (5/5)

Excellent product! The Titanium version

"Excellent product! The Titanium version doubles as a cooking vessel!"

— Jennifer B. (5/5)

Well built, durable. Good product

"Well built, durable. Good product"

— Christopher L. (5/5)

Fantastic! Don’t leave home without

"Fantastic! Don’t leave home without a spare!"

— Jason S. (5/5)

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