Experience Uninterrupted Journeys. Shop the ST-221B Air Pump Today.
Experience Uninterrupted Journeys. Shop the ST-221B Air Pump Today.
Experience Uninterrupted Journeys. Shop the ST-221B Air Pump Today.
Experience Uninterrupted Journeys. Shop the ST-221B Air Pump Today.
Experience Uninterrupted Journeys. Shop the ST-221B Air Pump Today.
Experience Uninterrupted Journeys. Shop the ST-221B Air Pump Today.

4.8/5 (253 reviews)
$19.99

WIRELESS

COMPACT

  •  Rapid Tire Inflation

  • Advanced Digital Pressure Gauge

  • Built-in LED Emergency Light

  • Ultra-Portable Design

Free Express Shipping on All Orders

Secure checkout with
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay

2-Year Warranty Included

Certified Safety Standards

100% Satisfaction Guaranteed

Details

Materials + Care

Crafted from aerospace-grade aluminum and high-density polymers, the ST-221B is built for durability and precision. Wipe clean with a soft, dry cloth. Avoid abrasive cleaners.

Shipping + Returns

Orders are processed within 24 hours. Enjoy complimentary express shipping on all ST-221B purchases. Returns are accepted within 30 days for a full refund.
LIMITED TIME OFFER

Launch Special

Save $50 on Your ST-221B Air Pump. Ends Soon.

00
Days
00
Hours
00
Mins
00
Secs
INNOVATION DRIVEN

Discover Amazing Features

The Keaton Mills ST-221B is engineered for peak performance and reliability, ensuring you're always prepared for the road ahead. Its intuitive design and powerful capabilities redefine convenience.

Wireless operation for ultimate freedom

Precision digital pressure monitoring

Automatic shut-off at desired PSI

Integrated emergency lighting

Join

Thousands of Confident Drivers

Peace of Mind

Felt more secure on long drives

89%

Time Saved

Inflated tires faster than expected

87%

Effortless Use

Found the device incredibly easy to operate

97%

Reliability

Trusted the ST-221B in emergencies

98%

The Keaton Mills Advantage

Why settle for less when you can have the best? The ST-221B Air Pump sets a new standard in portable tire inflation.

Keaton Mills Others
Wireless Operation
Digital Display
Automatic Shut-off
Compact Design

30-Day Risk-Free Trial

Your Satisfaction, Guaranteed.

We are confident in the unparalleled performance of the ST-221B Air Pump. If you're not completely satisfied within 30 days of purchase, simply return it for a full, no-questions-asked refund. Drive with confidence, or your money back.

Real Journeys, Real Confidence

#KeatonMillsST221B #NeverStranded

@roadwarrior_mike

Saved me on a desolate highway. The ST-221B is a game-changer for solo trips!

@urbanexplorer_anna

So compact and powerful. Keeps my city car ready for anything. Love the wireless design!

@familyadventures

Essential for family road trips. No more worrying about tire pressure. Highly recommend!

@tech_enthusiast

The precision digital gauge is fantastic. A truly premium device that delivers.

@weekend_getaway

Never thought a tire inflator could be this sleek and efficient. Keaton Mills nailed it!

Frequently Asked Questions

How long does it take to inflate a tire?

Inflation time varies based on tire size and desired pressure, but the ST-221B is designed for rapid inflation, typically topping off a standard car tire in under 3 minutes.

Is the ST-221B Air Pump truly wireless?

Yes, the ST-221B operates completely wirelessly thanks to its powerful integrated rechargeable battery, providing ultimate convenience and portability.

What vehicles is it compatible with?

The ST-221B is perfect for cars, motorcycles, bicycles, and even sports equipment. It comes with multiple nozzle attachments to fit various inflation needs.

Does it have an automatic shut-off feature?

Absolutely. You can preset your desired PSI, and the ST-221B will automatically stop inflating once that pressure is reached, preventing over-inflation.

How do I charge the device?

The ST-221B can be easily charged via a standard USB-C cable (included) from any compatible power source, such as a car charger, wall adapter, or power bank.