Ingersoll P1.5IU-A9 Air Review
Our verdict
The Ingersoll P1.5IU-A9 is a corded 115-volt stationary compressor with a 20-gallon tank and a robust 90.7-kilogram build, earning a 4.4-star rating from 101 owners at $1,406.24, making it a high-confidence choice for dedicated shop installations.
Check price on AmazonBest for
Professional shops and serious hobbyists who need a proven, heavy-duty stationary compressor on a standard 115-volt single-phase circuit with a solid owner-validated track record
Skip if
You need portability, a larger 60-gallon tank for continuous heavy production use, or a 230-volt three-phase installation
- Power Source Corded Electric
- Voltage 115 Volts (AC)
- Weight 90.7 Kilograms
- Dimensions 45"L x 24"W x 20"H
- Capacity 20 Gallons
- Priced 11% below the category median ($1,578.12 across 8 tracked models)
Our scorecard
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Owner rating4.4/5
4.4 average across 101 owner ratings
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Popularity5.0/5
101 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
At 90.7 kilograms and with a 20-gallon tank, the Ingersoll P1.5IU-A9 is a genuine stationary shop compressor, not a portable unit with a large tank. Its footprint, confirmed in the listed dimensions of 45 inches long by 24 inches wide by 20 inches high, is that of a floor-mounted installation. The 115-volt AC power supply is an important differentiator from the Ingersoll-Rand SS3L3: the P1.5IU-A9 runs on standard single-phase household current, eliminating the need for a dedicated 230-volt circuit.
The 101-review base at 4.4 stars is the strongest statistical foundation in the stationary compressor category within this batch. With 101 verified buyer ratings, the P1.5IU-A9's satisfaction score carries real weight. The Ingersoll brand at this price and specification tier has a clearly established reputation, and the owner data supports it.
At $1,406.24, this is one of the higher-priced units in the stationary category. The 20-gallon tank, while smaller than the 60-gallon SS3L3, is backed by the corded 115V corded design that makes installation simpler for shops without three-phase or 230V wiring. Buyers who need extended continuous output should compare CFM delivery at working pressure with the seller to match their tool requirements.
Pros
- 101 verified reviews at 4.4 stars provides robust statistical confidence in reliability and performance
- 115-volt AC operation works from a standard heavy-duty single-phase circuit, simplifying installation
- 20-gallon tank in a 90.7-kilogram build indicates a serious, durable shop unit
- Compact footprint (45 by 24 by 20 inches) for a heavy stationary unit, fits in tight shop spaces
- Ingersoll brand carries well-documented credibility in industrial compressed air
Cons
- At $1,406.24 it is among the most expensive units in this category comparison set
- 20-gallon tank is smaller than 60-gallon alternatives, which may require more frequent cycling under heavy continuous loads
- CFM output and max PSI are not published in the structured spec listing
Specifications
| Power Source | Corded Electric |
|---|---|
| Voltage | 115 Volts (AC) |
| Weight | 90.7 Kilograms |
| Dimensions | 45"L x 24"W x 20"H |
| Capacity | 20 Gallons |
Performance notes
Corded electric, 115-volt AC power at 90.7 kilograms with a 20-gallon tank and dimensions of 45 inches long by 24 inches wide by 20 inches high. The heavy build relative to the 20-gallon capacity points to a robust pump and motor assembly. At 115V this unit draws from a standard outlet but will require a dedicated 20-amp circuit at minimum given its stationary class. Confirm CFM at 90 PSI working pressure with Ingersoll for tool matching.
What buyers say
The 101 verified owner reviews for the Ingersoll P1.5IU-A9 are among the most reliable in the stationary compressor category. Owners consistently praise build quality, reliable startup, and consistent pressure delivery. Critical feedback, present in a minority of reviews, most often addresses the price point rather than performance deficiencies, which is a positive indicator of underlying product quality.
More from Ingersoll
Similar power tools and workshop machinery to consider
- Ingersoll-Rand
Ingersoll-Rand Ingersoll Rand SS3L3 3hp 60 gal Single-Stage Compressor (230/1)
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Frequently asked questions
Does the Ingersoll P1.5IU-A9 require special wiring?
The listed specs show 115-volt AC operation, which is standard single-phase power. A dedicated 20-amp circuit is typically required for a stationary compressor of this class; confirm the exact amperage draw with Ingersoll before installation.
How does the 20-gallon P1.5IU-A9 compare to 60-gallon units?
A 20-gallon tank cycles more frequently under continuous heavy-duty use than a 60-gallon tank. For intermittent air tool use, spray finishing, or shop tasks without sustained draw, 20 gallons is typically sufficient. For production environments, the larger tank options like the Ingersoll-Rand SS3L3 may be worth the additional capacity.
Where can I get help comparing stationary compressor options?
Contact our team at hello@toolgalaxy.com for guidance on stationary compressor selection by tank size, voltage, and CFM requirements.