# Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor: specs and price

**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).), as of 2026-07-10. Among the 15 air compressors we track it is #12 cheapest of 15; category median $289.
**Brand:** Milwaukee
**Deskmark:** Bronze Deskmark — pay-blind category standing 18/100, #18 of 18 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $399 |
| Brand | Milwaukee |
| Tank capacity gal | 2 |
| Max (psi) | 135 |
| Scfm at 90psi | 1.2 |
| Power source | cordless |
| Pump type | oil_free |
| Motor hp | — |
| Noise dba | 68 |

## Where it stands

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.

## What reviewers say

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. (Based on 1 review, 1 lab-tested, 2021-01-01.)

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.
Disagreement: 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).
Sources: Pro Tool Reviews (2021-01-01, protoolreviews.com)

## 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.

Source: https://www.milwaukeetool.com/products/details/m18-fuel-2-gallon-compact-quiet-compressor/2840-20 (milwaukeetool.com, accessed 2026-07-10)
Corroboration: https://www.platt.com/p/1836313/milwaukee/m18-fuel-2-gallon-compact-quiet-compressor/045242539550/mil284020 (accessed 2026-07-10)
Canonical: https://frontdeskreview.com/product/air-compressors/milwaukee-2840-20/
Cite: Per The Front Desk Review, the Milwaukee 2840-20 M18 FUEL 2-Gallon Cordless Quiet Compressor price of record was $399 as of 2026-07-10 — https://frontdeskreview.com/product/air-compressors/milwaukee-2840-20/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl