California Air Tools 4.6 gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor-4620A - The Home Depot

California Air Tools

Model # 4620A

Internet # 202977405

4.6 gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor

California Air Tools 4.6 gal. 2 HP Ultra Quiet and Oil-Free Aluminum Twin Tank Air Compressor

This item has been discontinued.
The Home Depot no longer carries this specific product.

$299.00 / box


Model # 4620A

Internet # 202977405

The California Air Tools 4620A Ultra Quiet air compressor is designed to be one of the quietest 2 HP electric air compressors in the industry having only 70 decibels of sound. The powerful 2 HP motor operates at only 1680 RPM creating less noise and less wear. The oil-free Dual Piston Pump System is engineered for high performance and durability. The oil-free pump allows you to use in different temperatures and uneven terrains. The 4.6 gal. aluminum rust resistant twin air tank will fill (from empty to full) in less than 60 seconds. The control panel comes complete with two 1/4 in. quick release connectors that will allow you to use up to 2 tools at the same time. This air compressor delivers 5.30 CFM at 90 psi allowing you to use larger air tools and more air tools at the same time. Powerful, Compact and Portable this air compressor is ideal where noise is a major issue.

  • Ultra Quiet! Only 70 decibels.
  • Oil-free dual piston pump for less maintnance and longer life
  • 4.6 gal. rust free aluminum twin tank
  • Lightweight for easy transporting - 64 lbs.
  • Powerful 2 HP (rated/running) motor
  • 7 CFM at 40 psi and 5.30 CFM at 90 psi/maximun pressure - 125 psi
  • Two pressure control gauges and two 1/4 in. universal quick connectors
  • NEW! (2014) Easy Start Valve. Allows for a no load start, for a low start up amp draw. Only 14-amps
  • Extra-large dual piston pump for increased compression and extra long pump life of over 3000 hours
  • Less time to fill the tank - only 60 seconds from empty to full
  • From 90 psi to 120 psi (kick off) 20 seconds from 120 psi to 90 psi (kick on) 10 seconds
  • Low vibration - motor speed of 1680 RPM
  • Oil-free pump allows you to use in different temperatures and terrains
  • Thermal overload protector
  • Easy to use ball drain valve

Info & Guides

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Assembled Depth (in.)  16.9 in  Assembled Height (in.)  19.6 in 
Assembled Width (in.)  19.3 in 
Air Delivery SCFM @ 40PSI  7.0  Air Delivery SCFM @ 90PSI  5.3 
Amperage (amps)  14  Application Use  Air Brushing,Blow Cleaning,Bolting/Wrenching,Brad Nailing/Stapling,Cutting,Drilling,Framing Nailing,Hobby Nailing,Hobby Painting,Inflation,Roof Nailing,Spraying,Surface Prep 
Compressor Tank Capacity (Gallons)  4.6  Compressor Type  Building and Construction 
Compressor/Air Tool Features  Handle,Oil Free Compressor,Tank Pressure Gauge  Decibel Rating (Outdoor)  70 dBA 
Horsepower (hp)  Included  No additional components or accessories are included 
Lubrication Type  Oil Free  Maximum Pressure (psi)  125 
Portable  Yes  Power Source  Electric 
Product Weight (lb.)  64 lb  Pump Type  Dual Piston 
Reconditioned  No  Returnable  90-Day 
Stage Count  Single Stage  Tank Material  Aluminum 
Tank Style  Double-Stack  Tools Product Type  Air Compressor 
Voltage (volts)  110 
Warranty / Certifications
Certifications and Listings  No Certifications or Listings  Manufacturer Warranty  Limited 1 Year 


Rated 4.4 out of 5 by 39 reviewers.
Rated 3 out of 5 by Great mechanics, aesthetically challenged We are very pleased with the performance of this compressor. It is indeed very quiet and more than enough power to run the plasma cutter we use with it. We were disappointed at the quality control, however. The base of the compressor was chipped and poorly constructed, which makes us worry about the quality of the parts we can't see (photo attached). We aren't particularly concerned about a paint chip on the base but we are a little nervous how the rest of the compressor will last in the long term. I would suggest Home Depot work with the manufacturer on quality control since this damage did not happen in shipping. October 21, 2014
Rated 5 out of 5 by This product has great features. I needed a quieter compressor and this fits the bill. It is quiet enough that you can have a conversation right next to it while it is charging. It's great for blowing dust out of the garage and filling bicycle and other tires. Haven't tried it with a nail gun yet, but recharges in less than a minute. The aluminum tanks make me less worried about corrosion due to there always being water in the tank when I release the pressure at the end of the day. It have a very handy finger-switch for releasing the pressure. Much easier than the knurled fittings on most generators. I have it connected to a 50 retractable hose mounted to the ceiling. The compressor is small enough to fit under my workbench (picture). I couldn't be happier with this compressor. April 16, 2014
Rated 5 out of 5 by Great buy! Love this compressor! I like it so much, I bought another for backup. December 9, 2014
Rated 3 out of 5 by This is quiet but may have problems at the onset. Purchased in Nov. 2013, I looked at numerous products and read many reviews before purchasing this compressor. What other reviewers said about shipping was true. This came in a single box with no styrofoam protection on the sides. The brass pressure switch adjustment valve wore a hole the size of my thumb through the box but luckily it wasn't damaged. The set-up instructions are very poor and the assembly view drawings very small to determine the parts and their number. After running the compressor for one hour, a pressure hose from the pressure switch to the air manifold developed a leek. Upon inspection, the line was resting against the heat fins located on top of the pump motor and the slight vibration and heat caused the leek to develop. In addition, the air fitting was turned toward the pump and the line was just long enough to reach. Very poor planning and engineering with a disregard to improving quality and inspection. I did get an immediate service tech without waiting and told him of the situations. He was polite and said there would be improvements in their shipping boxes this Jan. 2014. He sent me the parts I needed in two days.This is made in China for this USA company and the lack to basic quality control and improvement hasn't seemed too concerning since these comments are similar to many others in the past. I thought they would have corrected many issues and improved their product ... but it is Chinese!! I rate this as three stars since it is very quiet ( one reason for purchase) but priced high for the lack of quality control and shipping. January 8, 2014
Rated 5 out of 5 by Works as stated in the ad Had mine shipped to Home Depot to avoid a possibility of poor shipping. Came to me in perfect shape. No damage, but there was a loose pressure switch (sits behind the ON/OFF switch box). Using a dB (A and C) meter, sound was measured at 68dBC (dBC includes freq below 500Hz dBA is greater than 500Hz). Note: Every 10 dB is considered a perceived human hearing of doubling of loudness so the Husky 4 gal equiv. (1.5HP, 3.8 @40 2.8 @90) is more than twice as loud as this, for example. I have a 4CFM sander from Harbor freight (25% duty cycle so really it requires 12 to 16 CFM for on all the time performance). I charged the tanks and ran the sander without stopping and it seemed to maintain a good grinding ability at 45 psi without stopping. On the Husky 4gal the same stopped after 10 seconds, meaning I could stop the rotation of the sander with my hand. I have a blower. I can hold it ON and the air blew constant at 45 psi, down from 123 psi. The outlet diameter of the blower is about 3/32" so it is pretty wide open. The air use at 45 psi was very good and very usable so I didn't care. The tank filled from 45 to 123 psi in less than 30 seconds, I would say. It is astonishingly quick to charge. From 0 to 123 it is amazing how quick it is compared to all the other compressors I have used. It is heavy so I would not want steel tanks. It lifts with balance, however. Picking it up when it is hot could be an issue. The motor looks to be of great quality. Overall, I think the build is equal to any I have seen at Home Depot so I have no complaints. From the front it is aesthetically nice as well, better than the pictures on the websites. Dials and so on are equivalent in quality to others. I have no concern because this stuff is easy to replace with better if that is what I wish to do in the future. The parts are not expensive to upgrade, that is. Mine came with the new air release valve design California Air Tools just came out with. It was much better than that found on the Porter-Cable pan compressor which, btw, is about three times as loud as this compressor. That compressor you cannot have in the same room without having your ears ring. Anyway, it is easy to drain. I wanted Alum tanks because I plan to leave it charged so I don't want rust in the tanks. I left it charged and their was no drop in pressure at all so I was lucky with seals, I guess. The motor gets very hot. You will not be able to touch it after about 15 min of 100% on time. They say in the manual that you can have it on 100% for one hour. The filters are made of metal, not plastic. If you twist them, you will see what looks to be a mini paper -- car like-- air filter. I guess this can be replaced as the filters are made to twist in half and the paper filters, serviceable. I guess you could blow the filters out? In any case, these are not like the red filters you can get at Harbor Freight which are used for Powder Coating. I want to try Soda Blasting. I think it would work as the volume of air at 40 psi is 7CFM. I use a 12CFM air compressor to do this in a high dollar blasting cabinet and I have to dial that down to 40PSI for a better finish so I know I can be happy at 40 psi, and because the Harbor Freight 15 gal soda blaster is rated at 7 CFM at 40, I should be OK with this compressor. As my sanding tool eats air like crazy and since it seemed to be working -- good enough to sand anything I need -- at 40 psi, I believe the air is 7 cfm and believe, therefore, that the soda blasting tank should work. Overall, this is the best compressor I have used and I have used many. I don't know how long this will last. I say I'm concerned because of the temp of the motor when used heavily. However, because all other compressors I have used have plastic over the motor, I would guess that they also got very hot so I do not have a comparison for this concern. The sound is no louder than an 10" house fan set on High. I would say it is quieter, in fact. I chose this over the 10 gal 2HP California Air Tools compressor equiv. as the 10 gal does not give you any more than about 20 seconds more of time before the motor runs again. That is not worth the weight of a ten gallon steel tank. My air tools are likely going to make the compressor run all the time anyway, but it is rated for 1 hour so I should be fine and because it is so darn quiet, why should I care that the motor is on? The use of the tool is 3 time louder so why care that the motor is on as I can't even hear it over the tool? They say the motor lasts longer than the traditional, as it is electric, so if this becomes so, I will never own another type again as the sound and high CFM of this compressor is hard to fact, I don't think it has been, yet. October 20, 2013
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