U.S. Solid 3L Dual-Frequency
#2 in 3 to 10 LFull review
The most powerful small tank for its size, with dual frequency and degas, for shop parts and jewelry alike.
Amazon $128.97$128.97
The U.S. Solid 3L Dual-Frequency is the better ultrasonic cleaner overall, rated 3.7 to 3.5. The U.S. Solid 3L Dual-Frequency leads on ultrasonic power. The EIWEI CD-E3 3L Dual-Frequency costs $10.99 less ($117.98 vs $128.97).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
EIWEI CD-E3 3L Dual-Frequency
#4 in 3 to 10 LFull review
A 3 L dual-frequency tank with degas, for buyers who want a gentler 40 kHz setting and a stronger 28 kHz one in a small footprint.
Amazon $117.98$117.98
Which should you buy?
- Choose the U.S. Solid 3L Dual-Frequency for ultrasonic power (66.7 W per liter (200 W, 3 L) vs 40 W per liter (120 W, 3 L)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 3 to 10 L ultrasonic cleaner; a clear win is highlighted. How we rank explains each one.
| Factor weight | U.S. Solid 3L Dual-Frequency | EIWEI CD-E3 3L Dual-Frequency |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Value 30% | 51 $42.99 per liter ($128.97, 3 L) | 54 $39.33 per liter ($117.98, 3 L) |
| Ultrasonic power 25% | 100 66.7 W per liter (200 W, 3 L) | 75 40 W per liter (120 W, 3 L) |
| Heater 10% | 50 heater power not published (neutral score used) | 50 heater power not published (neutral score used) |
| Features 25% | 70 degas mode, dual or sweep frequency, basket included, timer of 60 min or more | 70 degas mode, dual or sweep frequency, gentle or adjustable power, timer of 60 min or more |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| U.S. Solid 3L Dual-Frequency | EIWEI CD-E3 3L Dual-Frequency | |
|---|---|---|
| Tank | ||
| Capacity | 3 L | 3 L |
| Inner tank size | - | 24 x 14 x 10 cm |
| Tank steel | - | SUS304 stainless |
| Basket included | Yes | - |
| Price per liter | $42.99/L | $39.33/L |
| Ultrasonics and heat | ||
| Ultrasonic power | 200 W | 120 W |
| Ultrasonic power per liter | 66.7 W/L | 40 W/L |
| Frequency | 28/40 kHz | 28/40 kHz |
| Temperature range | Up to 80 °C | Up to 80 °C |
| Controls | ||
| Controls | Digital | Digital |
| Longest timer | 99 min | 99 min |
| Degas mode | Yes | Yes |
| Gentle or adjustable power | - | Yes |
| Build | ||
| Weight | - | 7.1 lb |