GRAYL UltraPress Purifier 16.9oz review

The GRAYL UltraPress Purifier 16.9oz ranks seventh overall because its high price and lack of insulation pull its value score down, but it is in a different class for water safety. GRAYL says it removes viruses plus bacteria and protozoa, filters microplastics, PFAS and lead, and improves taste, smell and clarity. You fill the outer cup from a stream, lake, bathroom sink or hostel tap, twist the vent cap half a turn and press; GRAYL rates it at 10 seconds per 16.9 fl oz, or 3 liters per minute. A cartridge lasts 300 presses (150 L, 40 gal), and replacements cost $24.95. A one-way valve lets you add electrolytes, and GRAYL lists free shipping, free returns and a 10-year warranty. It costs $89.95. The trade-offs: it is the priciest bottle here, it keeps nothing cold, and each refill takes a firm press. We compared documented features and published prices and did not test the bottle.

Who it is for

international travelers who cannot trust the tap water

Price

$89.95 on GRAYL's US store as of November 2026.

16.9oz UltraPress® Purifier 4.8 out of 5 star rating 4.8 679 Reviews REVIEW HIGHLIGHTS Regular price $89.95
Quoted from the vendor pricing page on November 14, 2026.

Key features

• Removes viruses plus bacteria and protozoa, per GRAYL
• Filters microplastics, PFAS and lead, and improves taste, smell and clarity
• Purifies 16.9 fl oz in 10 seconds (3 liters per minute)
• Each cartridge lasts 300 presses (150 L, 40 gal); replacements cost $24.95
• One-way valve lets you add electrolytes or drink mixes; 10-year warranty

Strengths and weaknesses

• Strength: The only bottle here that GRAYL says removes viruses
• Strength: Works from any bathroom sink or rustic hostel tap, per GRAYL
• Strength: Free shipping, free returns and a 10-year warranty listed on the page
• Weakness: $89.95 is the most expensive bottle on this list
• Weakness: Not insulated, and you press with body weight each refill
• Weakness: Cartridges need replacing after 150 L at $24.95 each

Key facts

• Price: $89.95
• Capacity: 16.9 fl oz (500 ml)
• Removes: Viruses, bacteria, protozoa
• Cartridge life: 300 presses (150 L)
• Warranty: 10 years

Where it ranks

GRAYL UltraPress Purifier 16.9oz is No. 7 in our Best Travel Water Bottles verdict.