U.S. Solid 30L Dual-Frequency
#4 in 10 L and upFull review
A 30 L dual-frequency tank with degas and a long timer, for large parts that also need a finer setting.
Amazon $422.97$422.97
The U.S. Solid 30L Dual-Frequency is the better ultrasonic cleaner overall, rated 3.3 to 3.1. The U.S. Solid 30L Dual-Frequency leads on features. The Creworks 30L Ultrasonic Cleaner wins on value and ultrasonic power. The Creworks 30L Ultrasonic Cleaner costs $122.98 less ($299.99 vs $422.97).
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.
Creworks 30L Ultrasonic Cleaner
#8 in 10 L and upFull review
A 30 L tank for the biggest parts, with a drain for emptying it. It skips the degas and gentle modes.
Amazon $299.99$299.99
Which should you buy?
- Choose the U.S. Solid 30L Dual-Frequency for features (degas mode, dual or sweep frequency, basket included, timer of 60 min or more vs drain valve, basket included).
- Choose the Creworks 30L Ultrasonic Cleaner for value ($10 per liter ($299.99, 30 L) vs $14.10 per liter ($422.97, 30 L)) and ultrasonic power (20 W per liter (600 W, 30 L) vs 16.7 W per liter (500 W, 30 L)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 10 L and up ultrasonic cleaner; a clear win is highlighted. How we rank explains each one.
| Factor weight | U.S. Solid 30L Dual-Frequency | Creworks 30L Ultrasonic Cleaner |
|---|---|---|
| Overall rating | 3.3/5 | 3.1/5 |
| Value 30% | 84 $14.10 per liter ($422.97, 30 L) | 94 $10 per liter ($299.99, 30 L) |
| Ultrasonic power 25% | 17 16.7 W per liter (500 W, 30 L) | 25 20 W per liter (600 W, 30 L) |
| Heater 10% | 50 heater power not published (neutral score used) | 25 20 W per liter (600 W heater) |
| Features 25% | 70 degas mode, dual or sweep frequency, basket included, timer of 60 min or more | 30 drain valve, basket included |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| U.S. Solid 30L Dual-Frequency | Creworks 30L Ultrasonic Cleaner | |
|---|---|---|
| Tank | ||
| Capacity | 30 L | 30 L |
| Tank steel | - | SUS304 stainless |
| Drain | - | Yes |
| Basket included | Yes | Yes |
| Price per liter | $14.10/L | $10/L |
| Ultrasonics and heat | ||
| Ultrasonic power | 500 W | 600 W |
| Ultrasonic power per liter | 16.7 W/L | 20 W/L |
| Frequency | 28/40 kHz | - |
| Heater power | - | 600 W |
| Heater power per liter | - | 20 W/L |
| Temperature range | Up to 80 °C | 20-80 °C (68-176 °F) |
| Controls | ||
| Controls | Digital | Digital |
| Longest timer | 99 min | 30 min |
| Degas mode | Yes | - |