Internet #300779816

Model #OF45200SS

Store SKU #1002236453

Store SO SKU #1002225009

4.5 Gal. Portable Electric Quiet Air Compressor

  • STRONGStart Technology for reliable starting on any jobsite
  • Includes: Compressor with Power Cord
  • Backed by the RIDGID 3-Year Warranty
  • See More Details

Frequently Bought Together


Product Overview

RIDGID introduces the 4.5 Gal. Portable Electric Quiet Compressor. Coming in at 77 db, this unit is up to 75% quieter than leading competitor units, making it awesome for jobsites and keeping the crew working all day. STRONGStart Technology allows this unit to reliably start in any power condition. This unit is also up to 61% more compact than leading competitor units allowing for easier transport and storage, without sacrificing any power, all while having a powerful 200 PSI. All of this is backed by the RIDGID 3-Year Limited Warranty. This compressor includes a power cord and an operator's manual.
  • California residents
  • STRONGStart Technology: Reliable starting in any power condition
  • Lightweight Design: For easy jobsite transport
  • Locking Regulator: Holds knob to prevent unwanted pressure changes
  • 1/4 in. Turn Ball Valve Tank Drain: Drains tank quickly and easily with 1 turn
  • 200 PSI: Provides the ideal pressure for the toughest applications
  • 5.1 SCFM at 90 PSI: High-air delivery for peak performance
  • 4.5 Gal. Tank: Large tank capacity to reduce cycle frequency
  • 2 Universal Push-to-Connect Quick Couplers: Accepts both 1/4 in. automotive and industrial plugs with easy single-hand connection
  • 2 in. Pressure Gauges: For better viewing of regulated and tank pressure
  • Ergonomic Handle Design: For easy mobility and comfortability when carrying
  • Powerful Compact Design: Up to 61% smaller than leading competitor brand to take up less space and lighter body for easy carrying
  • Backed by the RIDGID 3 -Year Warranty
  • Includes: (1) OF45200SS 4.5 Gal. Portable Electric Quiet Air Compressor with electrical cord and operator's manual
  • RIDGID: Powerful. Durable. Professional.

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Product Depth (in.)
20 in
Product Height (in.)
19 in
Product Width (in.)
12 in


Air Delivery SCFM @ 40PSI
Air Delivery SCFM @ 90PSI
Amperage (amps)
14.5 A
Application Use
Finish Nailing,Framing Nailing
Compressor Tank Capacity (Gal.)
4.5 Gal.
Compressor Tank Capacity (Gallons)
Compressor Type
Framing & Roofing
Compressor Volume Rating
Compressor/Air Tool Features
Automatic Start/Stop,Handle,Oil Free Compressor,Tank Pressure Gauge,Universal Quick Connectors
Decibel Rating (Outdoor)
77 dBA
Horsepower (hp)
1.6 hp
No additional components or accessories are included
Lubrication Type
Oil Free
Maximum Pressure (psi)
Power Source
Power Type
Corded Electric
Product Weight (lb.)
61 lb
Stage Count
Single Stage
Tank Material
Tank Style
Tools Product Type
Air Compressor
Voltage (v)
Voltage (volts)

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
3-Year Limited Warranty

Questions & Answers


Is this compressor sufficent to blow out home irragation system ?

Asked by CaptDan October 20, 2020

Unfortunately, no. There is simply not enough volume to thoroughly blow out an irrigation system. I use a 30 gallon compressor for that and I have to fill the tank a few times to blow out each zone. I can't imagine how many times that you'd have to cycle this compressor to do the same thing.

The dimensions differ between yours and Ridgid's for the same model #. I have limited space and y...

Asked by Simon August 25, 2020

Thank you Simon for inquiring about the RIDGID 4.5 Gal. Portable Electric Quiet Air Compressor OF45200SS. The measurements on this page are correct. Thanks for asking! - Eve

anyone use this for a plasma cutter

Asked by Deedee August 15, 2020

Hi Deedee, We appreciate your interest in the RIDGID 4.5 Gal. Portable Electric Quiet Air Compressor OF45200SS. Manufacturers recommend you buy a compressor that is rated for about 1.5 times the CFM (cubic feet per minute) of your plasma cutter. A smaller compressor will work as long as you are not making super long cuts with your plasma cutter (longer than a minute). I hope this helps. - Eve

Does this have a lifetime warranty or do compressors not qualify?

Asked by Kp July 31, 2020

Hello Kp, thank you for your question. The RIDGID 4.5 Gal. Portable Electric Quiet Air Compressor comes with our Three (3) Year Limited Warranty only. - Justin

Can this compressor run a single roofing nail gun and keep up. Steadily fast?

Asked by David July 29, 2020

Absolutely. My crew ran two large coil nailers simultaneously, driving 8d .131” x 2-3/8” nails in roof sheathing and it had no problem keeping up. Nice / compact machine... no complaints.

Where can I buy parts

Asked by Bone July 22, 2020

Hi Bone, thank you for your question. To best assist you, please contact us at 800-525-2579

Will this move around on a sealed concrete garage floor?

Asked by MDK July 14, 2020

MDK, Thank you for contacting us concerning the RIDGID 4.5 Gal. Portable Electric Quiet Air Compressor. This compressor has rubber feet and not wheels. It should stay stationary. Thank you, JJ

What's the duty cycle on this machine? Thank you for your time

Asked by Steve July 4, 2020

Steve, Thank you for contacting us about the RIDGID 4.5 Gal. Portable Electric Quiet Air Compressor. The duty cycle is 5 minutes on/5minutes off Thank you, JJ

What impact wrench do i need for lug nut? Trying to find an impact wrench for this compressor, bu...

Asked by Ice June 13, 2020

Ice, Thank you for contacting us. For technical assistance you may contact us at 866-539-1710 Monday through Friday 9am-6pm (est).

Is this designed to be able to connect to an expansion tank for more tank capacity? If so, which...

Asked by SquishThatCat June 10, 2020

Thank you for contacting us. It is not designed to connect to an expansion tank.

4.5 Gal. Portable Electric Quiet Air Compressor - page 2

Customer Reviews

  • 227 Customer Reviews
  • 4.6 out of 5 stars overall
86% of customers recommended.
Overall Ratings
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Half way through building a shed my 20 year old Craftsman Compressor died.... I initially bought a Husky and wasn't too thrilled with it, so I returned it and bought the 4.5 gallon ridgid...... i was skeptical about a small tank compressor, but figured I could find something else if I didn't like it...... I am thrilled with it, it's way quieter than my old craftsman and the husky one I bought..... I also have been using it on a 100 foot extension cord and not a single slow start like my craftsman did..... framed up all this with the Ridgid Framing Nailer and the compressor
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Great portable compressor.. quiet and powerful.
Great portable compressor.. quiet and powerful.
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Amazing compressor makes my framing nailer fire just like a coil nailer. Top of the line ridgid
Amazing compressor makes my framing nailer fire just like a coil nailer. Top of the line ridgid
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Has been excellent so far a lot quieter than my other compressors
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Runs three framing guns with no reliefin air when cut off.
Runs three framing guns with no reliefin air when cut off.
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Quiet? well, sort of. It's not as loud as a traditional air compressor, but its definitely not 77...
Quiet? well, sort of. It's not as loud as a traditional air compressor, but its definitely not 77dB quiet. That's ok though. I can deal with it. I had a flooring nailer and a finishing nailer attached to it and it did cycle on and off. The good thing was that the cycle never lasted very long at all. I did transport this thing all over the house several times a day and it was a decent amount of work, but compared to the alternative bigger compressors with less cfm's, this one worked perfectly. I laid about 700 sqft of hardwood floor and had no problem. My next task is to finish the basement and I plan on using this little guy to do the job. I would recommend highly recommend this product.
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High Pressure - Limited Capacity
Quality :
Value :
Seeds Program Review
(What's this)
A single stage, oil-free compressor, mated with and mounted to two oblong tanks for a total of 4.5 gallons of capacity, this unit is billed as a “low noise”, easily portable unit primarily intended for nail-gun applications, capable of a maximum pressure of 200 psi, with a duty cycle of 5 minutes on/5 minutes off (50%). Overall construction of the made-in-China product appears to be of high quality, although some design features could be cause for concern. The output from the compressor to the tanks is plumbed using rigid metal tubing and the cross connection between tanks is by means of a welded pipe which will (intended or not) end up being used as an auxiliary handle. The output from the tanks to the regulator/output manifold is by means of a flexible hose (with crimped connections at each end). A replaceable, paper element air filter is installed on the compressor inlet (however there was no ordering information/part number for a replacement part in the Operator’s manual), configured slightly differently than shown in the manual. The two quick connect couplers provided are stated to be able to accommodate automotive or industrial type fittings. I only have automotive type and the couplers mated securely with no leakage. The required electrical supply is stated as 14.1 amperes (120 Volts, 60 Hz). I used it while connected to a 20 Amp. Branch circuit, and there was no difficulty; Operation from a 15 Amp. Branch circuit could be problematical, if the specified current requirement is accurate. A small, quarter-turn ball valve (with a thermoplastic “handle” is provided for each of the two tanks, and the user manual cautions to drain after every use. As the valves are not located at the low point of the tanks, one must tilt the unit, first one way…and then the other to properly drain the accumulated condensate. The operator’s manual also cautions regarding the finite useable lifetime of the tanks and they are marked with a label giving the “expiration date” this case September 2027 (about 11 years). In addition to the difficulty in properly draining, due to the location of the drain valves, since this is a portable unit which will be schlepped around in car trunks or the bed of a truck, the lack of physical protection of the valves could lead to damage, which would probably not be covered under the 3 year warranty provided. While provided with a handle, at 60+ pounds this is not a lightweight unit. The “ergonomic” handle, if positioned adjacent to one’s leg, will result in the tanks swinging into the lower leg. If it is grasped from the other side, the center of gravity of the unit is offset some distance from your body, making handling awkward. The sound level is stated as “77 dbA (outdoors). As this will, no doubt, see use inside of structures for finish nailing, I used it in a bedroom, while nailing molding in place. I measured a sound level (see photo) of approximately 83 dbA. Although this meter was not calibrated to a traceable standard, for comparison, I measured the sound level of my shop compressor (2 HP, 2 stage, 20 gallon) with the same meter, at the same distance with a result of 77 dbA. When using a brad nailer, I was able to drive approximately 75-100 nails before the compressor would cycle on and pump up the tank (operating the nailer at 80 psi). For this application, duty cycle and noise issues would probably not be problematical. The specifications rate the unit at 5.1 SCFM at 90 PSI, however, operating a pneumatic sheet metal saw (rated as requiring 4 SCFM at 90 psi) caused the compressor to cycle on after 10 seconds. If operation of the saw was ceased, the unit would pump up and shut down in 20 seconds. If operation of the saw continued, however, the compressor could not “catch up” and, after 90 seconds tank pressure fell below the 90 psi the tool was being operated at. In summary, this is a well made, if somewhat heavy, noisy and awkward to handle unit which will function for applications requiring low air consumption, such as pneumatic nail-guns, but will require some TLC to avoid damage and possible reduction of tank lifetime.
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Response from THD-CSFebruary 9, 2017
Dear Valued Home Depot Customer, Thank you for being a SEEDS member and for your review. We value your feedback. We are glad to hear you’ve found our product to be high quality. The filter can be ordered from RIDGID customer service using the part number in the replacement parts sheet located at the link which follows. Alternatively, you can remove the air filter from the filter housing, use an air blower to clean it, and replace it. This compressor will operate on a 15 amp circuit without issue. It features Strong Start Technology which enables it to operate even when there are poor power conditions. The drain valve location, offset from the direct bottom, protects them. As you mentioned, the tank can be drained by simply tilting it one way and then the other. We’ve measured the sound at 77 dB in accordance with ISO3744 with 6 calibrated microphones. Without special sound equipment, we think customers will notice that this unit produces much less noise than many other compressors with comparable air delivery and even some that put out less air. Rotary air tools typically use a “CFM” air consumption rating that assumes the user is not running the tool continuously. We suspect the saw you are using is actually consuming around 15 SCFM if you depress the trigger non-stop. Thank you again for your feedback. Here is the link to the replacement parts:
Got this compressor as a replacement for one I previously purchased. Talk about customer satisfac...
Got this compressor as a replacement for one I previously purchased. Talk about customer satisfaction. Kara Cheetham took very good care of me when she learned about my issue. Got this to me before i realized is was at my front door. Waited for the right project to pull it out and give it the ultimate test on a project we re roofed in a hurry before Christmas. I had 3 Rigid roofing coil nailers and a framing gun operating at all times on a consistent. I have to admit it never stalled, over heated or hesitated to start at any given point. I kept a close eye on it during the progress of the work we performed. I strongly recommend this compressor. Lighter than all of the other I own and it really is quiet. Makes communication alot easier all day to speak from the ground up to someone standing on the roof of a house.
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Excellent air compressor...
Excellent air compressor
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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