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

GEOPRESS® One-Way Silicone Valve

Regular price$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.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Related Products


Recently viewed

Overall rating: 4.9072614 / 5 from 1143 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%): Customers loved the GRAYL water purifier, considering it the best on the market.
  • Replacement Cartridges (3%): Customers appreciated the great replacement cartridges for their GeoPress purifier, highly recommending the product.
  • Filter Performance (21%): Many customers expressed satisfaction with the filter, stating it is excellent, awesome, and top tier.
  • Water Taste (6%): Customers expressed satisfaction with the water filter, stating that it tastes great and is easy to use.
  • Product Quality (4%): Customers appreciated the high quality of the product, which was mentioned multiple times in the reviews.

Review topics: ["size","fit","color","issues","design","weight","quality","price","looks","comfort","customer service","feels","packaging","solution","performance","addition","difference","value","wife","shipping","plastic","light","results","service","filter","water","tasting","bottle","purifier","system"].

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

Best tasting water!

"I love my Grayl water bottle and filter. As an avid hiking, it’s indispensable. It’s easy to use and lasts a long time. I even tried it in nasty tap water with great tasting water as a result. It is a great product!"

Chris P. (5/5)

Great product

"World travel is my passion. Reliable, clean drinking water is a must! My Grayl water bottle has been with me to 30 odd countries leaving no plastic bottle waste or stomach issues!"

Sallie D. (5/5)

Geopress Replacement Filter

"Finally had the funds & a Discount to try this out. . . The Sawyer Squeeze Filter & CNOC 2L/3L are my go to, for Price & water sustainability, where you need several Litres of water per Hour. . . So for day to day use, the Grayl System, is a good option, but can't replace the time a Sawyer saves!!! Get the Price of the Filter down to $10 & it would be more feasible!!!"

Michael R. (5/5)

Poor performance

"I have used this filter for the Great Divide MBR New Mexico towards Banff. Initially I tested once in Scotland then used it for 8 days (8 gallons?) before the filter blocked too hard to continue using. Sales in th US kindly sent me two free replacement cartridges. I appreciate that gesture. I have used the first replacement cartridge for 11days (16 gallons) and already it takes 1min 20 seconds to press with as much body weight as I can use. Additionally now about 3/4 of the way down on the press I get a squirt of water in exactly the same spot inferring that the outer container has distorted due to water pressure. Honestly I think this is a poor design and needs a lot more development. Destined for land fill shortly in my opinion sorry. As a bonus at least I have not been ill so as a filter it works just way too slow and with no back flush hopeless."

MELLOW L. (1/5)

Amazing bottle

"Love the geopress. I have a geopreas titanium and use the French press for it all the time. Filled my geopress directly out of lake Victoria in Kenya, streams in Honduras and well water in Africa. Works awesome. I have never been ill since I started using it. I filter local bottled water as well. Amazing product. I go everywhere with it."

Casey (5/5)

Make it titanium

"Why is the bottle titanium but the cartridge plastic? Take that outer black plastic cartridge casing and make it into a titanium casing that opens and closes with a threaded opening. And make the inside filter medium replaceable by itself. Now you don’t have to make a new plastic casing with every cartridge, just sell the inner medium as a replacement without the casing. Let us get the titanium casing so we can buy it once and keep reusing it and washing it while switching out only the inner filter medium. This would reduce our exposure to plastics in the treated water and would also reduce your manufacturing costs and waste footprint since you don’t have to make a new casing for each cartridge. And it would make the product actually premium. There’s no reason for someone to get a titanium bottle if the cartridge used to treat the water is still plastic, might as well just get the whole bottle as plastic. And I don’t buy grayl because I want plastic. I want titanium everything. No shortcuts. I don’t appreciate cost cutting measures and I’m actively looking for another product to switch to so I can stop buying this, unless the issue is fixed and the plastic is eliminated."

Mustafa A. (2/5)

Geopress filter

"My grayl ti's are always in my pack, weather it's my 16oz for day hikes it 24oz for multi day use I know I can count on clean, safe drinkable water where ever I go. Excellent products."

Dave M. (5/5)

We take our travel and

"We take our travel and camping. Safe, clean drinking water wherever we go."

David K. (5/5)

Always have one extra!

"always have an extra. especially if your filter is contaminated with bad stuff of fouled by silt, the bloodhound might fine it when you are cleaning gear."

Chuck M. (5/5)

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)

Q&A