Bosch CET4-20W 4-Gallon 2-HP Wheeled Twin Angled Tank Air Compressor

by Bosch

Product Description

Amazon.com Product Description

The Bosch CET4-20W Four-Gallon, Two-HP Wheeled Twin-Angled Tank Air Compressor is easy to transport and use, yet tough enough to withstand heavy-duty jobsite conditions. This CSA-certified compressor has a four-gallon tank and requires only 10 seconds of recovery time. It's specially designed to eliminate common air-compressor complaints and to provide a high level of user comfort.

The CET4-20W Four-Gallon, Two-HP Wheeled Twin-Angled Tank Air Compressor offers: 10-inch pneumatic tires for easy, balanced mobility. Angled "EZ Drain" system for effortless draining. 3,400 RPM induction motor for powerful performance.

An oil-lubed pump adds durability and a cold-start valve averts weather damage. View larger.

Vertically angled tanks allow for easy draining and balance the compressor for portability. View larger.

Vertically Angled Tanks for Your Comfort
Other air compressors can cause discomfort because they lack balance, and their exposed motor and components make them difficult to carry. But the CET4-20W is comfortable to use, because it features vertically angled tanks that are ergonomically balanced. And because this compressor stays close to your body, it provides a natural center of gravity. Additionally, the roll cage and recessed, easy-access control panel protect you from exposure to the regulator, gauges, coupler, and drain valve.

Compact Size and 10-Inch Pneumatic Tires for Portability
Unlike large wheeled compressors that hold the majority of their weight in front, the CET4-20W is balanced, measuring 7.75 x 19.75 x 16.25 inches (WxHxL) and weighing 84.9 pounds. It's compact, lightweight, and even enough for effortless movement around the jobsite. It also boasts 10-inch pneumatic tires and an easy-folding handle to further enhance portability.

EZ Drain System for Fast, Efficient Draining
To ensure that the tanks drain properly, and to prevent a decrease in compression that can cause a decrease in productivity and performance, the CET4-20W boasts Bosch's "EZ Drain" system. First, the tanks are slightly angled to allow water to collect at their bottoms. Second, the drain system is connected to both tanks to allow for easier draining. Finally, with pressure in the tanks, you can simultaneously drain them both by turning the ball valve located in the control panel.

Powerful Induction Motor and Cold-Start Valve for Professional Performance
The CET4-20W owes its robust performance to a powerful two-pole induction motor that spins at a speed of 3,400 RPM. This motor provides a dBA of 80 to cut down on distracting noise when you're working close to the compressor. There's also a cold-start valve that prevents the compressor from blowing a fuse in cold weather.

Additionally, a contractor-grade, oil-lubed pump ensures durability and extends tool life. The CET4-20W comes with an industry-leading, two-year pump warranty.

Safety-Relief Valve, Air Filter, and Dipstick for Additional Protection
In addition to its protective design, the CET4-20W features a safety-relief valve to prevent failures by relieving pressure from the system when compressed air reaches a predetermined level. And to prevent dirt and debris from compromising performance or durability, an air filter cleans the air coming into the pump. Finally, an oil dipstick lets you know exactly how much oil is left in the tank, so it's always clear when it's time to refuel.

Straightforward, User-Friendly Operation
The CET4-20W has an easy-to-read tank pressure gauge that lets you know the amount of pressure available, as well as a regulator that allows you to easily set the right level for driving nails. Additionally, two couplers are located on the tool's front for fast, uncomplicated hose attachment. For added convenience, the CET4-20W requires just 10 seconds of recovery time.

What's in the Box
Compressor with oil in the pump.

For more information, click on the images below
Bosch Nail Guns and Compressors
SN350-20F Full Head Framing Nailer	SN350-34C Clipped Head Framing Nailer	FNA250-15 15 Gauge Angled Finish Nailer	FNS250-16 16 Gauge Angled Finish Nailer	BNS200-18 18 Gauge Brad Nailer	STN150-18 18 Gauge Narrow Crown Stapler
RN175 Coil Roofing Nailer	CGT8-65W 8 Gallon 6.5 HP Gas Wheelbarrow Air Compressor	CET8-15W 8 Gallon 1.5 HP Electric Wheelbarrow Air Compressor	CET3-10 3 Gallon Electric Hand Carry Compressor	CET4-20 4 Gallon Electric Hand Carry Compressor	CET4-20W 4 Gallon Electric Compressor w/ Wheels

Product Description

Includes 4-Gallon Angled Tank 2 HP Wheeled Twin Compressor - CET4-20W

See all Product Description

Product Details

• Shipping Weight: 98.2 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B0022NHVVY
• Item model number: CET4-20W
• Average Customer Review: 4.0 out of 5 stars  See all reviews (8 customer reviews)
• Amazon Best Sellers Rank: #78,774 in Home Improvement (See Top 100 in Home Improvement)
  • #98 in Home Improvement > Air Tools > Air Compressors

Customer Reviews

Most Helpful Customer Reviews

6 of 6 people found the following review helpful:

5.0 out of 5 stars Awesome air!, November 5, 2009

By 

Drew Stephen "Tool Dude" (Indiana) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Bosch CET4-20W 4-Gallon 2-HP Wheeled Twin Angled Tank Air Compressor (Tools & Home Improvement)

I bought this to replace my old dewalt air compressor and I could not have gotten a better replacement. After bolting on the wheels and 20 minute break in period your in buisness. This compressor pumps up and recovers very fast. I like the center drain valve as it makes draining the tanks a walk in the park. The pneumatic wheels make moving this compressor around the jobiste a breeze. If your looking for a mobile compressor that recovers fast this the compressor for you!

4 of 4 people found the following review helpful:

5.0 out of 5 stars Well worth the price, April 4, 2010

By 

Jesse Dover (Providence, RI USA) - See all my reviews
(REAL NAME)   

This review is from: Bosch CET4-20W 4-Gallon 2-HP Wheeled Twin Angled Tank Air Compressor (Tools & Home Improvement)

Being a carpenter in the north east I require a pretty heavy duty compressor that is low maintenance and can start up all year round. I shopped around before going with the Bosch, and it definitely lives up to expectations. I had already purchased a new Bosch (FNA250) angled finish nailer and was very impressed with their new technology, basically lighter and smaller, with more power. This compressor stood out from the other twin tank models for several reasons but mainly because of it's mobility and good strong design.

I like the fold down handle for storage, it fits right under my work bench no problem. And when extended you can wheel it around without bending over, unlike the Dewalt and Makita model. The wheels are pneumatic and high quality, and allow it to go right up stairs. Also it has two intelligently placed handles at the bottom of the two tanks and one on top for one and two man operations. Overall it is relatively light for its size, but I almost have never had to muscle it around because I favor the wheels. My other compressor (Hitachi EC12) hasn't left the garage since I bought this one.

This compressor must have been designed by someone who uses one daily. The whole compressor is surrounded by a sturdy roll cage. All the air fittings and gauges are recessed between the tanks which protect them from being damaged. The air release valve is conveniently located between the tanks at the bottom of the unit for effective water and air draining. I did have to change the couplings because the ones that come with it weren't compatible with all my other hoses, only took 10 mins. Also on my other compressor I had mounted a water filter right after the pressure regulator, but there isn't any room to do the same on this model. I am going to have to put it "in line" after the couplings somehow.

Another nice feature is the slow start motor, which draws less amps upon start up, so your not always tripping weak breakers. The power cord is very heavy duty and good quality, looks like it is 10 gauge. Also the recovery time is amazing, this motor is a workhorse, and fills the two tanks to 125 psi very fast for being 2 HP. It is not the quietest compressor, but because it recovers so quickly (appx 10 sec) it doesn't run that much.

Overall it is an expensive compressor, but well worth it because they didn't sacrifice quality in it's design . You really get what you pay for, so you might as well pay an extra $150 for something that won't kill your back, and is REALLY WELL MADE. Mine has already paid for itself and some.

3 of 3 people found the following review helpful:

4.0 out of 5 stars High quality, well designed, August 26, 2010

By 

Timothy J. Raleigh - See all my reviews
(REAL NAME)   

This review is from: Bosch CET4-20W 4-Gallon 2-HP Wheeled Twin Angled Tank Air Compressor (Tools & Home Improvement)

I have never had a compressor and after shopping around and comparing features and benefits for my use as a cabinet maker/finish carpenter I felt this compressor would suit my needs.
I do store this in my basement and regularly haul it up stairs to a site and it's heavy but very well made. The dials are clear, and the pneumatic wheels attach to the frame much more solidly than the wheels on Bosch's Airsweep vacuum for example.
I use a variety of pneumatic tools - in 16gauge to 23 gauge staplers and nailers on a 50 ft hose and it has performed flawlessly.
The slow start motor is a great advantage in homes that have circuits that are close to max but it will pop 15 amp fuses if there is any other load on them so beware of the power requirements. As a safety feature (???) the compressor has a fuse called a thermal protector that will pop if the machine is overloaded when you do not use the on/off lever to restart. This thermal protector must be manually reset for the machine to start up.
While the compressor is heavy and is not ideal for moving up and down stairs once you get it there the pneumatic wheels and capacity more than makes up for this inconvenience. As another review mentioned there are handles around the top of the machine and it does make it more comfortable to find a good grip particularly walking up stairs without bumping the walls in a finished home. I just wish that Bosch could have added soft grips in more than one place.
I use this for on site and in shop (home) finishing/cabinet making and it is up to the task.

I did have some problems initially getting parts (in Canada) for this unit. I broke the catch for the swing handle, tightening it incorrectly. The way the handle is attached to the frame and lock into place on the unit seems to be an afterthought by Bosch. While I like the handle as it provides plenty of leverage for moving the compressor around and storing a hose, the way it is attached to the frame of the compressor is it's main (mechanical) weakness.

When I called Bosch in the US in February they were clueless as to what I was even talking about as this was a new machine and didn't have the parts. This seemed odd as the parts list was published on the Bosch web site. I was promised a call back but never received one. I called again left a message and it was never returned. Terrible service. 4-5 months later I did follow up with a retailer in Canada who I regularly buy parts from and they said the parts were back ordered but they did eventually get them for me in June.

When you run the compressor or move it around frequently the hex bolts that hold the handle on to the unit loosen up and need to be checked and tightened. You need two hex keys of the same size which can be a problem on a job site.

Other than the above mentioned inconveniences and minor design drawbacks with the handle this is a very well build, sturdy compressor.