RX-3G

RotoPax 3 Gallon Gasoline Fuel Container

3 Gallon Capacity
EPA CARB Compliant
Roto-Molded Construction
Stackable Design
10 Year Leak Free Guarantee
$119.99
$129.99
4 interest-free payments available with Shop Pay
Need a secure mount?
Add to your order
Quantity
Order by 11am CST — ships same day
Backed by Warranty
Manufacturer-backed coverage
Heavy Duty Build
Built for daily use
Made in USA
American manufacturer
Same-Day Ship
Most orders ship same day
Description

The RotoPax 3 Gallon Gasoline Fuel Container (RX-3G) is a rugged, higher-capacity fuel pack for carrying gasoline on trucks, UTVs, trailers, and overland rigs. Manufactured in the USA using RotoPax's patented three-layer rotational molding process, it's the only rotationally molded EPA and CARB compliant fuel container available for sale in the United States — backed by a 10 year leak free guarantee.

Rotational molding is what sets it apart from a standard blow-molded fuel can. The process builds thicker walls and stronger construction for serious impact resistance, while a specialty-formulated plastic barrier layer meets federal low-permeability requirements to keep fuel vapor in and contamination out. Extra threads and a Sure Seal gasket keep the spout from leaking or vibrating loose on rough roads.

The slim profile is built for mounting, with multiple molded handles for carrying and tie-down versatility. The container locks onto any RotoPax mounting system (sold separately), attaching securely to bed racks, roof racks, rear panels, side rails, and other flat surfaces, and the stackable design lets you add a second pack on top using a RotoPax extension kit. A spout and cap assembly is included for controlled, leak-resistant fuel transfer.

Designed specifically for gasoline in standard red. EPA and CARB compliant in all 50 states. Made in the USA. Backed by RotoPax's 10 year leak free guarantee.

⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Quality Assurance
Every container is roto-molded in the USA to EPA and CARB standards and backed by a 10 year leak free guarantee.
What's in the Box
3 Gallon Gasoline Fuel Container
Spout and Cap Assembly
Features +
Gasoline-Specific Design: Purpose-built for gasoline transport and storage in standard red
EPA & CARB Compliant: The only rotationally molded fuel container meeting both standards for sale in all 50 states
Three-Layer Roto-Molded Construction: Patented process builds thicker walls and stronger construction than blow-molded cans
Low-Permeability Barrier: Specialty-formulated plastic barrier layer meets federal extremely low permeability requirements
Leak-Resistant Performance: Extra threads and Sure Seal gasket keep the spout from leaking or vibrating loose
Stackable Design: Add a second container on top using a RotoPax 3 gallon extension kit (sold separately)
Multiple Molded Handles: Versatile grip points for carrying and mounting flexibility
Mount-Ready Design: Locks onto any RotoPax mounting system (sold separately) for racks, panels, trailers, and flat surfaces
Vibration Resistant: Stays clamped tight through off-road and washboard conditions when mounted
Colorfast Material: Bright red color resists fading through sun and weather exposure
Made In The USA: Manufactured domestically by the original fuel pack maker
10 Year Leak Free Guarantee: Backed by RotoPax's full manufacturer warranty
Specs +
Item Number: RX-3G
Brand: RotoPax
Capacity: 3 Gallons
Fuel Type: Gasoline
Material: Rotationally Molded Plastic (Three-Layer)
Color: Red
Dimensions: 16" x 15" x 4.5"
Spout Included: Yes, Spout and Cap Assembly
Mounting System: Compatible with All RotoPax Mounts (Sold Separately)
Stackable: Yes, with RotoPax 3 Gallon Extension Kit (Sold Separately)
EPA Compliant: Yes
CARB Compliant: Yes
Country of Origin: USA
Warranty: 10 Year Leak Free Guarantee
Common Applications +
  • Off-road and overland gasoline carry
  • Truck bed rack and roof rack fuel storage
  • UTVs, ATVs, and adventure vehicles
  • Backup gasoline supply for remote travel
  • Trailer and rack-mounted fuel systems
  • Extended range for hunting and backcountry trips
Frequently Asked Questions +
Q: What is this container designed for?
A: Safe transport and storage of gasoline in mobile, off-road, and vehicle-mounted applications.
Q: What makes this different from a standard fuel can?
A: The patented three-layer roto-molded construction builds thicker walls and stronger construction than blow-molded cans, with a low-permeability barrier layer. RotoPax is the only rotationally molded EPA and CARB compliant container sold in the US.
Q: How is the container mounted?
A: It locks onto any RotoPax mounting system, sold separately, which secures it to bed racks, roof racks, rear panels, trailers, and other flat surfaces. All RotoPax mounts fit all RotoPax fuel containers.
Q: Can I stack multiple containers?
A: Yes. Using a RotoPax 3 gallon extension kit, sold separately, you can stack a second container on top of this one on a single mount.
Q: Does this container include a spout?
A: Yes. A spout and cap assembly is included for controlled fuel transfer.
Q: Do I need to vent this container?
A: Yes. RotoPax recommends venting the fuel pack once per day when elevation or temperature changes significantly to relieve normal pressure buildup.
Q: What is the warranty?
A: Every RotoPax fuel container is backed by a 10 year leak free guarantee and RotoPax's full manufacturer warranty.
Don't see your question?
Midway Tanks LLC

Why Customers Choose Midway Tanks

Authorized dealer. Fast shipping. Real people who know fuel tanks. Backed by our Make It Right Guarantee.

Read Our Story →
RotoPax 3 Gallon Gasoline Fuel Container
$119.99
Save This Product

Send me a link to come back

Enter your name and email and we'll send you a quick link to this product so you don't lose it.

RotoPax 3 Gallon Gasoline Fuel Container
SKU: RX-3G

Check Your Email

We've sent you a link to this product. Come back anytime.

Ask a Question

We'll respond within 1 business day

Have a question about this product? Send it our way.

RotoPax 3 Gallon Gasoline Fuel Container
SKU: RX-3G

Question Sent

Thanks! We'll respond within 1 business day.