Milwaukee · Updated July 2026
Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor: price & specs
The Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor costs $399, #12 cheapest of 15 air compressors (median $289). It earns a Bronze Deskmark — 18/100 pay-blind standing, #18 of 18 in class.
Verified Jul 10, 2026 · figures linked to their source in the table below
- Best for Quiet operation — measured 72 dBA SPL with a decibel meter, a whole lot less noise than a pancake compressor; Compact, tough design with carry handle and protective roll cage.
- Skip if At 31.2 lb, heavier than several competing cordless compressors is a dealbreaker.
Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor. Every price and spec below is linked to its source and dated — no guesses.
Source: milwaukeetool.com verified ✓ corroborated verify in ledger
Is the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor a good buy?
At $399, the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor is #12 cheapest of the 15 air compressors we track, where the median is $289. On the spec sheet, its tank capacity gal of 2 is below the median of the 18, its scfm at 90psi of 1.2 is below the median of the 17, and its noise dba of 68 is below the median of the 16.
Evidence of Record
Our data- Independent labsmeasured it
- 1
- Physical metricsrecorded
- 1
- Outlets on recordall tested
- 1
One independent lab measured this product across 1 physical metric — noise. These numbers rest on a single hands-on source so far.
Review consensus · sourced & dated
What reviewers say about the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor
One whitelisted tester (Pro Tool Reviews) published a hands-on review of the exact 2840-20, with a professional plumber using it on real jobsites. He rates it quiet and powerful, measuring 72 dBA SPL with a decibel meter. Praised: low measured noise, compact tough design with carry handle and roll cage, and cordless operation on power-free sites. Flagged: 31.2 lb weight (heavier than several competitors), 135 PSI ceiling that falls short of a 150 PSI pressure test, and north-of-90-second fill time.
Tested by Pro Tool Reviews
Consistently praised
- Quiet operation — measured 72 dBA SPL with a decibel meter, a whole lot less noise than a pancake compressor
- Compact, tough design with carry handle and protective roll cage
- Cordless convenience enables getting work done on jobsites with no power
Commonly flagged
- At 31.2 lb, heavier than several competing cordless compressors
- 135 PSI max falls short of a 150 PSI pressure test
- Takes north of 90 seconds to fill up
Where reviewers disagree Only one whitelisted hands-on source, so no cross-source comparison is possible; all findings reflect a single professional plumber's jobsite testing at Pro Tool Reviews. Note the tester's own decibel-meter reading (72 dBA SPL) is higher than Milwaukee's spec-sheet rating of 68 dB(A).
The sources (1)
noise (decibel meter, SPL): 72 dBA
We measured just 72 dBA SPL using a decibel meter.
It's quiet and powerful, especially with a 12.0 battery.
At 31.2 pounds, a bit heavier than several of its competitors
Specifications
| Price (US) | $399 Platt Electric Supply US list price "$ 399.00 EA" (bare tool, model 2840-20); Milwaukee's official product page shows no price (info/where-to-buy page only). |
|---|---|
| Brand | Milwaukee |
| Released | — |
| Tank capacity gal | 2 |
| Max (psi) | 135 |
| Scfm at 90psi | 1.2 |
| Power source | cordless |
| Pump type | oil_free |
| Motor hp | — |
| Noise dba | 68 |
Source: milwaukeetool.com (verified 2026-07-10) · corroborated by platt.com. The Milwaukee official product page confirmed the exact model identity — "2840-20 M18 FUEL 2 Gallon Compact Quiet Compressor" — a cordless M18 REDLITHIUM unit rated "only 68dB(A)" with up to 1,600 18ga brad nails per charge; its numeric spec table is JavaScript-loaded, so the quantitative specs and price were taken from the Platt Electric Supply distributor page. Platt states verbatim for model 2840-20: "Max PSI: 135, SCFM: 1.2 @ 90 PSI, Oil Free Pump", "Cordless", "68dB(A)", "2 Gallon", and price "$ 399.00 EA", confirming tank_capacity_gal 2, max_psi 135, scfm_at_90psi 1.2, power_source cordless, pump_type oil_free, and noise_dba 68. motor_hp and release are null: no rated horsepower (POWERSTATE brushless motor) or release date is published on either fetched page.
Is the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor worth it vs cheaper air compressors?
Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor against its closest cheaper and pricier air compressors on the specs that matter — every value sourced. See all 15 ranked →
| Product | Price | Tank capacity gal | Max (psi) | Scfm at 90psi | Power source | Pump type |
|---|---|---|---|---|---|---|
| Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor this | $399 | 2 | 135 | 1.2 | cordless | oil_free |
| Rolair JC10PLUS 1 HP 2.5-Gallon Ultra-Quiet Compressor | $379.99 | 2.5 | 125 | 2.4 | corded | oil_free |
| California Air Tools 10020C Ultra Quiet 10-Gallon Steel Tank Compressor | $430 | 10 | 125 | 5.3 | corded | oil_free |
Frequently asked questions
What do reviewers say about the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor?
One whitelisted tester (Pro Tool Reviews) published a hands-on review of the exact 2840-20, with a professional plumber using it on real jobsites. He rates it quiet and powerful, measuring 72 dBA SPL with a decibel meter. Praised: low measured noise, compact tough design with carry handle and roll cage, and cordless operation on power-free sites. Flagged: 31.2 lb weight (heavier than several competitors), 135 PSI ceiling that falls short of a 150 PSI pressure test, and north-of-90-second fill time. Praised: Quiet operation — measured 72 dBA SPL with a decibel meter, a whole lot less noise than a pancake compressor; Compact, tough design with carry handle and protective roll cage; Cordless convenience enables getting work done on jobsites with no power. Flagged: At 31.2 lb, heavier than several competing cordless compressors; 135 PSI max falls short of a 150 PSI pressure test; Takes north of 90 seconds to fill up. (From 1 tester review, 1 lab-tested.)
How much does the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor cost?
The Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor has a US price of $399 (Platt Electric Supply US list price "$ 399.00 EA" (bare tool, model 2840-20); Milwaukee's official product page shows no price (info/where-to-buy page only).), as of 2026-07-10.
How does the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor compare on price?
At $399, the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor is #12 cheapest of the 15 air compressors we track, where the median is $289.
What are the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor's key specs?
Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor (Milwaukee): tank capacity gal 2, max psi 135, scfm at 90psi 1.2, power source cordless, pump type oil_free. Full sourced spec sheet verified 2026-07-10.
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