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The Ingersoll Rand 2-hp 4-gallon contractor twin stack air compressor is available for purchase today.

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Ingersoll Rand 2-HP 4-Gallon Contractor Twin Stack Air Compressor

(Based on expert analysis, manufacturer ratings and customer reviews)

4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
18 Reviews
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  • Features
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  • 18
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Application
Contractor Grade Air Compressors
Style
Twin Stack
Tank Size
4.5
Gallons
Power
4.4
CFM @ 90 PSI
Need Help? Call Our Air Compressor Experts.
Cast-Iron Construction
Designed for the toughest 100% continuous duty applications

Oil-Lube Pump
Has double the life of similar oil-free pumps

Job Site Uses
Great for trim, roofing, decking, framing, sheathing, etc

4-Gallon Twin Stack Tank
Convenient and efficient air storage system

Cold Season Ready
All season select lubricant and low amp draw

Lightweight and Compact
Easily transport this unit from job site to job site


Model
Model Number:P1IU-A9
Manufacturer:Ingersoll Rand
Motor
Running HP:2 HP
Voltage:120 Volt AC
Phase:1-Phase
Magnetic Starter:No
Pump
CFM @ 40 PSI:5.3
CFM @ 90 PSI:4.4
Max PSI:135 PSI
Pump Material:Aluminum w/ Cast Iron Sleeve
Pump Type:Single-Stage
Pump Drive:Direct Drive
Oil Type:Oil Lubricated
Oil System:Splash Lubricated
Low Oil Shut-off:No
Oil Sight Glass:No
After Cooler:No
Tank
Tank Size:4.5 Gallons
Tank Outlet:1/4 Inch
Tank Orientation:Horizontal
Overview
Certification:CSA
Dimensions:19L x 19W x 19H
(48.26 x 48.26 x 48.26 cm)
Product Weight:77 lbs (34.93 kilograms)
Consumer Warranty:1 Year
Commercial Warranty:1 Year
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  1 Question
Q: I'm looking to replace my Ingersoll Rand model #DD2T2 but can't find that model anywhere. Does Ingersoll make the same compressor with a different model number?
by Anonymous on April 26, 2011

A: IR actually discontinued that unit last year and the P1IU-A9 is it's direct replacement.
by Steve, Product Expert
Ingersoll Rand P1IU-A9 Reviews & Ratings
Write Review
Overall Rating
Features
4/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
Pros
I Contacted Ir And They ... (1)
Good Compressor However ... (1)
Quiet (3)
Easy To Use (3)
Price (2)
Cons
Heavy (3)
Bad Instructions (1)
Instructions Do Not Incl... (1)
I Would Like Separate Ga... (1)
100% of respondents would recommend this product to a friend
18 Reviews  Sort by 
 
Steve, the Air Compressor Expert
Air Compressor Expert

Product Expert
Total Reviews
108 Reviews
Total Helpful Votes
949 Helpful Votes
Air Compressors Direct Recommended

An IR compressor speaks for itself with a reputation for durability and reliability- and this unit is no exception. That secured it our "Best" rating because it is great for various jobs such as trim, roofing, decking, framing, sheathing, etc.

The 120V electric motor gives you 4.4 CFM at 90 PSI. The wrap-around design protects the motor, and it's plumbed to run 2 hoses at once, with a separate gauge for each hose, doubling your productivity by letting 2 people work at once, or... more
Steve Recommends This Model
Was this review helpful?
207
John Mays
Fairburn, GA
Purchased from Air Compressors Direct
Purchased 10/27/13
Most Helpful Positive Review
REVIEWED
NOV.
16
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
A Little Trouble
I was not satisfied with your customer service at all. You billed my Pay-Pal account two times, and finally got it straight.

The compressor came with broken gauges and no decals. I called IR and great customer service had gauges to me in one day. However still no decals, I guess they do not need to advertise.
Pros: Quiet, Price, Good Compressor However It Came With Broken Guages And No Decals, I Contacted Ir And They Sent Guages Still No Decals
Cons: Heavy, Bad Instructions
John Recommends This Ingersoll Rand Product
Steve, the Air Compressor Expert
Product Expert
John,
Our records show you placed 2 orders- one thru PayPal and one through the Bill Me Later program. Once you let us know one of the orders needed to be cancelled we were happy to do so.

Your confirmation email asks customers to refuse the shipment if the unit arrives with damage. We're glad Ingersoll Rand replaced the gauges without asking you to file a shipping damage claim!
more
Was this review helpful?
52
Danny
Purchased from Air Compressors Direct
Purchased 6/28/14
REVIEWED
JUL.
19
2014
4 out of 54 out of 54 out of 54 out of 54 out of 5
Heavy Compressor
Compact but hard to move around
Pros: Easy To Use
Cons: Heavy
Danny Recommends This Ingersoll Rand Product
Was this review helpful?
10
Mike D.
Rockaway, NJ
REVIEWED
JUN.
20
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Machine
Basically unpacked the machine, filled it with oil and turned it on. The tanks filled in about 55 seconds & ran 2 framing nailers all day long.

Been running like a charm for about a month now. Love it & would buy again...

1 issue is that it is very heavy, so I typically leave in the back of my truck and run a few long hoses.
Pros: Quiet, Durable, Easy To Use, Exceeded Expectations
Cons: Heavy
Mike Recommends This Ingersoll Rand Product
Was this review helpful?
11
Jeffrey M.
Foristell, MO
Purchased from Air Compressors Direct
Purchased 3/4/14
REVIEWED
APR.
16
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Product, Great Store!
Use PED. You will save money. That's all. Great store and great service.
Pros: Quiet, Price, Fast, High Quality
Cons: I Would Like Separate Gauge For Each Hose
Jeffrey Recommends This Ingersoll Rand Product
Was this review helpful?
11
Steven
Cheektowaga, NY
Total Helpful Votes
13 Helpful Votes
REVIEWED
AUG.
10
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
The Best Smaller Twin Tank Compressor
This has to be biggest baddest liittle compressor around!!!!!!!!!!

Yes, it is lower volume for constant high pressure for like using grinders, sanders, or such , but two of these built multiple 10,000 square foot homes, with two airline fittings per unit.

It's for the average JOE who needs a small high quality unit, which delivers enough air for removing the lug nuts or axle bolts on a motorcycle 15 times a year. It's cast iron,oil lubricated ...That"s the selling point......... more
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131
Robert C.
Canon City, CO
Purchased from Air Compressors Direct
Purchased 5/26/13
Total Helpful Votes
11 Helpful Votes
REVIEWED
JUN.
17
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Keeps Up Easily With 2 Nailers
I received the compressor in great shape and took it to the job site immediately. Have used with two nailers, one framing, one trim, working simultaneously with no pressure problems whatsoever.

I have experienced no leaks of any kind and the pressure stays up consistently. The only drops occur when actually using the system for pressure requirements and the system keeps up easily with the requirements.

I highly recommend this compressor.
Was this review helpful?
110
Michael
Arlington, TX
Purchased from Air Compressors Direct
Purchased 1/26/10
Total Helpful Votes
11 Helpful Votes
REVIEWED
MAR.
21
2010
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Rating After 2nd Try
The I1IU-A9 came to my house fully operational however, the discharge pressure gauge was faulty, only showing a fraction of what the compressor was putting out (3 of 5 stars for Ingersoll Rand not QC'ng their outbound unit).

I was told to contact Ingersoll Rand (IR) for getting the unit fixed. IR told me the they would have to send me a new gauge. After a week I called IR and they told me the gauge was backordered and they did not know when it would be sent (1 of 5 stars for IR customer... more
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110
Heather
Bronson, FL
Total Reviews
2 Reviews
Total Helpful Votes
11 Helpful Votes
REVIEWED
DEC.
11
2008
4 out of 54 out of 54 out of 54 out of 54 out of 5
I Used To Sell Craftsman Compressors
I am a former employee of the Sears tool territory. I sold lots of compressors and accessories, however Ingersoll Rand was always the brand preferred by many of my customers.

This brand is a true work horse. I bought one for my workshop and I love it.
Was this review helpful?
100
James
Mt. Vernon, MO
Purchased from Air Compressors Direct
Purchased 3/13/10
REVIEWED
APR.
04
2010
5 out of 55 out of 55 out of 55 out of 55 out of 5
This Product Is Perfect
I needed a compressor for general shop use. This product is perfect.

It will easily air up tractor and automotive tires. It's also portable, which is great for those offsite needs (although at 70+ pounds it's not like carrying your lunch).

I'm very satisfied with this product so far and would highly recommend it.
Was this review helpful?
80
Allen W.
Katy, TX
Purchased from Air Compressors Direct
Purchased 6/4/13
REVIEWED
JUN.
26
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Buy!
I would add instructions on how much oil to start with. The free oil included was a white bottle and I used about half of it to get the oil half way up the dip stick. That was after a little trial and error- I was afraid to over fill it.

Overall it's a great unit. I would buy it again.
Pros: Easy To Use, Reliable, I'd Buy It Again
Cons: Instructions Do Not Include The Amount Of Oil You
Allen Recommends This Ingersoll Rand Product
Allen Would Recommend Air Compressors Direct To A Friend
Web Site
4/5

Service
4/5

Shipping
4/5
"It said will ship in 4 to 7 business days. so on the 7th day my notification said confirmed but not shipped. But, by the end of the day I received an email that UPS had dropped it at my front door- so I received it in 7 days. That's service!"
 more
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60
Bruce Mce.
Simpsonville, KY
Purchased from Air Compressors Direct
Purchased 11/8/12
Total Reviews
3 Reviews
REVIEWED
NOV.
16
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Tools Keep Me Smiling
It is a pleasure to own and use a quality built piece of equipment. Air Compressors Direct is good about getting orders out, even though they are drop-shipped from the factory.

This unit is set up in the work shop of a 70 acre horse farm. One outlet is connected to a 50' retractable tire hose, the other is for shop duty air tools, cleaning, etc. This means very little hooking and unhooking of things.

The unit runs strong and quiet, and I'm happy to have a nice compressor. Good... more
Was this review helpful?
50
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