Aquamira G2O Replacement Water Filter

Replacement filter designed for your G2O Water Filtration Bottle or as a standalone emergency filtration tool. Reduces bacteria, viruses, and other contaminants while improving taste, odor, and clarity — no electricity required.

Compact and easy to store, this filter provides up to 120 gallons of filtration and can be used either inside your G2O bottle or on its own as a straw-style purifier, making it a versatile backup for travel and emergencies.

The Aquamira G2O Replacement Filter is built to maintain and extend your access to clean drinking water in portable, on-the-go situations. Whether you're replacing a used filter or adding a backup, it ensures your filtration system continues performing when you need it most.

It works both as part of the G2O bottle system and as a standalone emergency water filter. This makes it especially useful for travel, bug-out kits, and situations where space is limited but water access is critical.

Reduces common water concerns including:

• Bacteria
• Viruses
• Parasites
• Chlorine and chemical taste/odor
• Microplastics and particulates

Not every water solution fits every situation. This replacement filter is designed for portability and system maintenance — not large-scale filtration.

Well Suited For

• Replacing or upgrading your G2O filtration system
• Emergency kits and bug-out bags
• Travel, hiking, and mobile use
• Individuals needing lightweight, compact filtration

May Not Be Ideal For

• High-volume household water filtration
• Long-term stationary use where gravity systems are preferred
• Saltwater or heavily contaminated industrial water

The practical details most people compare when choosing a portable water filter:

• Contaminant Reduction: Reduces bacteria, viruses, and parasites in freshwater sources
• Filtration Capacity: Up to 120 gallons (approximately 750 refills) per filter
• Portability: Compact, lightweight design for easy carry and storage
• Dual Functionality: Works in G2O bottle or as standalone straw
• Flow Rate: Designed for quick, on-demand drinking
• Power Requirement: None — manual use only
• Certifications: Meets EPA microbiological purifier standards and NSF/ANSI 372 for lead-free materials

Designed to Be Easy to Use

The G2O Replacement Filter is designed for quick, tool-free installation and immediate use. Simply insert it into your G2O bottle or attach the included straw and mouthpiece for standalone use.

There's no setup, pumping, or assembly required. Drink directly through the filter and it begins working immediately — making it easy to use even in time-sensitive situations.

Advanced Biological Filtration

The filter is engineered to reduce bacteria, viruses, and parasites commonly found in untreated water sources. This helps improve water safety while also enhancing taste and clarity.

Dual-Use Design

Unlike traditional replacement filters, this unit can function independently as a straw-style purifier. This adds redundancy and flexibility to your water setup, especially in emergencies.

On-Demand Filtration

Water is filtered as you drink, eliminating the need for storage, pumps, or external pressure systems. This makes it ideal for fast, mobile hydration.

Filter Lifespan & Replacement

Each filter is rated for up to 120 gallons of use, depending on water quality. Replace the filter when flow rate slows or performance decreases to maintain optimal results.

Replacing Your Filter Is Easy

1. Remove cap from bottle and screw out used filter.
2. Open packaging and attach new straw to barbed end of new filter.
3. Screw new filter snugly into cap.
4. Fill bottle with water.
5. Insert new filter into bottle, tighten cap, then open dust cap to expose bite valve.
6. To drink, bite and suck bite valve while firmly squeezing bottle.

Proper care helps maintain performance and extend filter life.

• Initial Use: Follow included instructions for setup and first use
• Routine Cleaning: Keep exterior clean and free from debris
• Storage Conditions: Store above 35°F and avoid extreme temperatures
• Replacement Timing: Replace filter when flow rate noticeably decreases
• Backup Use: Keep additional filters on hand for extended preparedness

• Certified by IAPMO R&T to NSF/ANSI 372 for lead-free content.
• Meets US EPA Microbiological Purifier test standards for the reduction of cysts, bacteria, and viruses in EPA Type-I test water.
• Chlorine reduction claims are not performance tested by IAPMO or NSF International.
• US Patent #9162167B2.
• System and installation to comply with state and local laws and regulations. Do not use with water that is microbiologically unsafe or of unknown quality without adequate testing and/or disinfection before or after the system. AQUAMIRA recommends Aquamira Chlorine Dioxide Water Treatment if disinfection is needed. Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts. Manufactured from NSF/ANSI standard 61 and California Prop 65 Compliant raw materials.
• Performance claims are based on independent lab results and manufacturer's internal test data*. Actual performance is dependent on influent water quality, flow rates, system design and applications. Your results may vary. Performance claims are based on a complete system without modifications. This filter must be operated according to the system's specifications in order to deliver the claimed performance. It is essential to follow operational, maintenance, and filter replacement requirements as directed for each application for this filter and system to perform correctly. Read the Manufacturer's Performance Data Sheet accompanying the system and change the filter as suggested. The contaminants or other substances removed or reduced by this water filter are not necessarily in all users' water.