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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Retrax 90311 - PowertraxPRO MX 04-08 F150 5'6 w/out Stk PktThe same great quality of the PowertraxPRO, now comes in a powerful matte black powder coat finish. We've powered up the best bed cover on the planet. This retractable bed cover features all the same great benefits of the RetraxPRO MX, but allows for hands off operation via a wireless remote control. The PowertraxPRO MX features unbeatable aluminum construction that stands up to the toughest conditions. Once you have the PowertraxPRO MX installed,
The same great quality of the PowertraxPRO, now comes in a powerful matte black powder coat finish. We've powered up the best bed cover on the planet. This retractable bed cover features all the same great benefits of the RetraxPRO MX, but allows for hands-off operation via a wireless remote control. The PowertraxPRO MX features unbeatable aluminum construction that stands up to the toughest conditions. Once you have the PowertraxPRO MX installed, you'll never have to worry about your bed cover again. The PowertraxPRO MX locks in any position using an electromagnetic brake -- the perfect way to keep the contents of your box safe. Plus, it allows for unlimited flexibility in hauling almost any object. The retractable cover opens and closes easily with one hand thanks to its sealed-for-life bearings. There's no need for pull straps, Velcro, snaps or springs.- Industrial Strength Aluminum Construction
- Front Cover Remains Flush With Rolling Cover
- Low Profile Design
- Opens And Closes Easily With The Push Of A Button
- Sealed Ball Bearing Roller Design
- No Pull Straps; Velcro; Snaps or Springs
- Key Lockable In Any Position; Secures Your Valuable Cargo
- Unlimited Hauling Flexibility
- UV Protected; No Fading
- No Maintenance
- Great For 5th Wheel Hauling; Improves Mileage By Up To 10 Percent
- Limited Lifetime Warranty
Additional Attributes:
- GTIN: 840563110163
- Tonneau Rails: Standard Rails w/out Stake Pockets
- Finish: Matte Black
- Actual Color: Black
- Bed Rail Storage: Without Bed Rail Storage
- Bed Tailgate: Without Tailgate Step
- Cargo Management System: Without Cargo Channel System
- Color: Matte Black
- Front Opening: No
- Full Bed Access: Yes
- Install Time: 60 Minutes
- Key Lockable: Yes
- Low Profile: Yes
- Material: Aluminum
- Paintable: No
- Rails To Install: No
- Sits on Truck Rails: No
- Style: Retractable Hard Cover
- Works w/Toolbox: No
Packaging:
- Quantity of Each: 1
- Package UOM: EA
- Dimension: 65.000 x 14.000 x 16.000 inches
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1195 reviews
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Product Reviews
★★★★★ 5
Blows Me Away!
It was time to clean out my business computers. Besides the general dust accumulation, dust builds up on the cooling fins of the CPU which can cause all kinds of computing issues. In the past I've used canned compressed air, which works well, but is getting expensive and doesn't last long. I spotted this on Amazon and, after watching the videos, decided to give it a try. I'm very glad I did! The Wolfbox works just as well, if not better, than the canned air! In fact, it blew out some dust bunnies the canned air had missed!
Canned air runs out quickly and loses power as the pressure decreases, leaving you with an empty can that needs to be recycled. The Wolfbox is rechargeable. After fully charging it I used it intermittently for about 15 minutes and it was still showing a full charge. This amount of use would translate into 2-3 cans of air.
So many things today are slapped together with little thought given to their design. The Wolfbox, however, seems to be well thought out and designed. The Wolfbox includes several different nozzles to direct and concentrate the air stream. To turn it on, just press and hold the small orange button on the back of the handle. There is a 4 led charge indicator on the side of the handle that lights up. Then, simply aim the Wolfbox and pull the trigger. It's just that simple! If you finish the job and forget to turn it off, it will turn itself off after a couple of minutes to save the battery charge. This charge indicator also works during the charging process, flashing while charging and solid when fully charged.
This was discounted to about $40, and that price helped me make the decision to try it. There apparently is a "New and Improved!" version now available at a higher price which promises more power. But this Wolfbox easily met my needs and exceeded my expectations. If you used cans of compressed air this will pay for itself in a reasonable amount of time and will not leave you with a bunch of empty cans to recycle.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
A great engineering calculator
Color: Black
I am an electrical engineering professor. it is a struggle to find an inexpensive calculator to recommend to students that can handle complex matrices! There are other engineering calculators that I like much more than the 9750 (such as the hp-prime (my favorite) or the Casio fx-cg50) but this is the least expensive of the calculators I consider "engineering capable". I didn't mention the TI 84 because it handles complex math very poorly, and requires "Euler entry" of polar numbers. The TI-Nspire can do it all, but has way too many menu levels to get anything done.
The 9750 doesn't support CAS mode, and the graphing capabilities are tedious, slow, and poor resolution, but as an engineering calculator I rate it highly because of the complex math and matrix capabilities. I like the larger "graphing" screen for showing larger matrices (not for graphing).
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Reviewed in the United States on November 13, 2025
★★★★★ 5
Great value for money, calculus and linear algebra Calculator
Color: White
Great calculator for Linear Algebra. I’ve been using it for 5 months nearly everyday for hours on end and its battery is still holding up. It comes with a sleeve and made from light plastic that is durable. For a cheap calculator, it pulls its weight in matrices, polynomials, and even graphing. My only gripe with this calculator is the limited vector calculations that make it less than ideal for any sort of physics academics.
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Reviewed in the United States on November 25, 2025
★★★★★ 5
Recommended!
Color: Pink
This calculator model was recommended by the school for math classes, and my daughter has been using it for quite some time now. She's very happy with it and finds it reliable and easy to use. She especially loves that it comes in this color - it's a nice "girly" option that stands out from the usual standard designs.
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Good and convenient.
Color: Black
A great calculator. Simple, has all necessary features, works well and quickly. Great for students and adults alike, works for a long time, responds quickly doesn’t lag. Havent needed to charge it yet- great battery life and screen, even has brightness and zoom options! Even spdurabke enough to hold up to all the times it’s been dropped😅 Overall, a great purchase.
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Reviewed in the United States on April 28, 2026