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1-Year Warranty
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Free shipping
30-Day Return
1-Year Warranty
Clean Water. No Power Needed.
Enjoy fresh, better-tasting water anywhere with the Big Flow Tank 3 Gravity Water Filter System. Designed with activated carbon, UF membrane filtration, and silver ion protection, this stainless steel countertop water filter helps reduce chlorine, odors, and fine particles while improving everyday water quality — no electricity or plumbing required.
Its compact, space-saving design, real-time water level window, and durable stainless steel build make it ideal for apartments, small kitchens, offices, travel, camping, and emergency use. Use it in full size or compact mode for flexible everyday convenience.
• 1.5 Gallon Capacity
Compact size with enough clean water for everyday use.
• No Electricity Needed
Filters water naturally using gravity. No power or plumbing required.
• Multi-Stage Filtration
Helps reduce chlorine, odors, rust, and sediment.
• Stainless Steel Design
Made from food-grade 304 stainless steel for long-term use.
• Portable & Space-Saving
Ideal for apartments, small kitchens, RVs, offices, and emergency.
• Water Level Window
Quickly check remaining water without opening the tank.
Capacity: 1.5 Gallons (5.7L)
Flow Rate: Up to 3 Gallons Per Hour
Filter Life: Up to 6,000 Gallons Per Filter Pair
Material: 304 Stainless Steel
Power Required: None
Installation: No Plumbing Needed
Use: Home, Apartment, RV, Camping & Emergency Preparedness
✓ Stainless Steel Upper Tank ×1
✓ Stainless Steel Lower Tank ×1
✓ Stainless Steel Lid ×1
✓ Stainless Steel Faucet ×1
✓ Filter Cartridges ×2
✓ Stand Base ×1
✓ Installation Accessories ×1
Carbon Filter Pair: Up to 6,000 Gallons
Typical Service Life: 6–12 Months
Actual lifespan depends on water quality and usage.
✓ Chlorine
✓ Sediment
✓ Rust
✓ Odors
✓ Fine Particles
Activated Carbon — Improves taste and reduces chlorine.
Silver Ions — Helps maintain filtration performance.
UF Membrane — Helps reduce fine particles and impurities.
Just fill, filter, and enjoy clean water anywhere—perfect for home, travel, and everyday use.
Combines carbon, UF membrane, and silver ions to help reduce chlorine, sediment, and unwanted contaminants.
Built-in display and viewing window let you easily check water level and system status—simple, clear, and easy to use every day.
Advanced multi-layer filtration works longer to keep your water fresh, clean, and consistent—day after day.
NO POWER NEEDED
Gravity filtration—clean water without electricity or setup
PORTABLE ANYWHERE
Compact size—easy to carry for camping, RVs, and trips
Reliable Water Flow
More Water, Less Refilling
FOOD-GRADE STAINLESS STEEL BUILD
Safe materials—no plastic taste, built for long-term use
SUPPORTS DAILY WELLNESS
Clean water helps your body stay balanced and hydrated
SAFER FOR FAMILY USE
Reliable water for kids, cooking, and daily drinking
NO POWER NEEDED
Gravity filtration—clean water without electricity or setup
PORTABLE ANYWHERE
Compact size—easy to carry for camping, RVs, and trips
Reliable Water Flow
More Water, Less Refilling
FOOD-GRADE STAINLESS STEEL BUILD
Safe materials—no plastic taste, built for long-term use
SUPPORTS DAILY WELLNESS
Clean water helps your body stay balanced and hydrated
SAFER FOR FAMILY USE
Reliable water for kids, cooking, and daily drinking
Got a less-frequently asked question?
The multi-stage filtration system helps reduce chlorine, sediment, rust, odors, and fine particles while improving overall water taste. Performance may vary depending on local water conditions.
The system uses gravity-fed filtration, meaning water naturally flows through the filter without electricity or plumbing. Simply add water to the upper chamber and let gravity do the work.
Gravity water filters are simple, portable, and reliable. They require no electricity, no plumbing, and minimal setup, making them ideal for homes, apartments, travel, and emergency preparedness.
Filter lifespan depends on water quality and usage. Normally around 6 months. For best performance, replace filters according to the recommended usage period or when flow rate slows noticeably.
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