Overlander Tank - 5 Gallon
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Description
The Overlander 5-Gallon Tank delivers pressurized water anywhere—no power needed. Whether you're rinsing off mud, setting up a camp kitchen, or keeping fresh water on hand, this rugged tank is built for the backcountry. With three ways to pressurize (self-pressurization, pump cap, and Schrader valve), you get instant high-pressure flow anytime. Low-profile, durable, and adventure-ready, it’s the ultimate portable water solution.
FEATURES
- 5-gallon capacity for portable water storage and outdoor use
- Multiple pressurization methods: self-pressurization, pump cap, and Schrader valve
- Compact, low-profile design easily mounts to bed racks, roof racks, and bed rail systems
- Quick and easy attachment with precision-machined mounting system
- Food-grade plastic ensures safe storage of drinking water
- Ideal for outdoor activities, including rinsing off, camp kitchens, and more
Product Overview
Designed for overlanders, off-roaders, and weekend warriors, the Overlander 5-Gallon Tank raises the bar in portable water storage. Its low-profile, space-saving design lets you mount it horizontally or vertically with the universal MOLLE mounting system, so you can place it where it works best for you. Durable and built for the trail, it keeps pressurized water available whenever you need it. From washing gear to camping showers, the Overlander has you covered.
Included in the Box
- Overlander 5-Gallon Tank
- Pump Cap
- 5-Pattern High-Pressure Spray Nozzle
- 16-Foot Hose
- CNC-Machined MOLLE Mounting Bracket
Product Specifications
- Capacity: 5-Gallon (18.9L)
- Pressurization: Bike Pump, Pump Cap, Garden Hose
- Mounting: CNC Machined Universal MOLLE Mounting Bracket System
- Nozzle: 5-Pattern High-Pressure Spray
- Hose: 16ft Extended Reach
- Hose Attachment: Quick-Disconnect Fittings
- Valves: All-Brass Fittings
- Tank Material: Food-Grade, BPA-Free Polyethylene
- Dimensions: 13 x 31.5 x 4.9 in / 33 x 80 x 12.5 cm
- Weight (Empty): 18.7 lbs / 8.5 kg
- Weight (Full): 54.7 lbs / 24.9 kg

MORE WATER. LESS SPACE.
The Overlander’s compact, low-profile design saves space without sacrificing performance. Whether you're mounting it to bed rails, roof racks, or off-road rigs, this five-gallon portable water tank is built for seamless integration and versatility.
- Height: 13 inches
- Width: 4.9 inches
- Length: 31.5 inches
- Weight: Empty: 18.7 lbs | Full: 54.7 lbs
INTEGRATED MOLLE MOUNT
Designed for rattle-free, rock-solid mounting with a precision-engineered MOLLE system that locks it in tight—wherever the trail takes you. Mount it horizontally or vertically anywhere you need, then swap it to another rig or grab it for H20 on the go in seconds.
PRESSURE WITHOUT LIMITS
Pressurize effortlessly with a garden hose, the included pump cap, or the Schrader valve. The Overlander 5-Gallon Tank delivers high-pressure water anywhere—no power needed. Perfect for rinsing gear, washing dishes, or an outdoor shower off the grid.
HYDRATION READY DESIGN
Made from BPA-free, roto-molded food-grade plastic, the Overlander portable tank ensures a lifetime of durability and clean, drinkable water wherever you go. Rinse off, hydrate, or wash your dog off with confidence—no contaminants, no compromises, just fresh water.
SPACE-SAVING PROFILE
Five gallons of portable water storage without the bulk. This innovative low-profile design tucks neatly onto roof racks, bed racks, and rail mounts, maximizing storage while keeping your rig organized and always prepared for the adventure ahead.
POWER TO CLEAN
Trail dust, salt spray, or campfire grime—wash it away with the 5-pattern high-pressure nozzle and quick-connect system. Snap it in, switch from mist to jet, and get the perfect camp shower. No power, no hassle, just pressurized water on demand.
Overlander Tank - 5 Gallon$399.99 | DayTank - 4 Gallon$239.99 | Weekender Tank - 8 Gallon$549.99 | GoSpout - 2 Gallon$144.99 | HydroSpray$229.99 | |
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YOUR QUESTIONS ANSWERED
How Do I Pressurize the Overlander Water Tank?
The Overlander 5-Gallon offers three convenient pressurization options to suit your needs. It self-pressurizes when filled from a garden hose, can be manually pressurized using the included Pump Cap, or can be pressurized with a standard bike or tire pump via the Schrader valve. Versatile pressurization means you’re always ready for the next adventure
How does the Universal MOLLE Mounting System work?
A Universal MOLLE Mounting System is a grid-style panel designed for secure and adaptable mounting on a wide range of vehicles and gear setups. Originally developed for military applications, MOLLE (Modular Lightweight Load-carrying Equipment) panels use a series of slots and holes that allow for customized mounting configurations.
This system makes it easy to attach the Overlander 5-Gallon Tank to bed racks, roof racks, bed rail mounts, and more, giving you the flexibility to position it exactly where you need it. The low-profile, slim design saves space while ensuring a rock-solid, rattle-free fit, no matter how rough the terrain gets.
How Long Does the Overlander Tank Hold Pressure?
The Overlander 5-Gallon Tank is designed to hold pressure for up to 90 days (3 months) under normal conditions. However, factors like temperature, altitude, and frequency of use can affect pressure retention. If needed, you can quickly repressurize using the pump cap, bike pump, or air compressor, ensuring continuous, pressurized water flow whenever you need it.
This makes it an ideal portable water tank for overlanding, camping, and off-grid adventures, providing reliable water storage and easy access on the go.
How Long Does 5 Gallons of Water Last for Outdoor Showers?
The Overlander 5-Gallon Tank provides enough water for multiple camp showers, depending on your usage. A typical rinsing shower using a pressurized system lasts 3-5 minutes, while a conservative backcountry shower—where you turn the water off between rinses—can stretch up to 10 minutes or more.
Is the Overlander made for other Liquids?
Yes, the Overlander 5-Gallon Tank is safe for non-boiling liquids like sports drinks (e.g., Gatorade), filtered water, and mild soapy solutions. However, we do not recommend using it for boiling liquids, alcohol, fuel, or harsh chemicals, as these can affect the tank’s materials and pressurization system.
For best performance, rinse thoroughly after use—especially when storing sugary or flavored liquids—to prevent residue buildup and maintain optimal flow and pressure.