EIWEI CD-E6 6L Dual-Frequency
#7 in 3 to 10 LFull review
A 6 L dual-frequency tank with degas and a long timer. Its listing does not say how much ultrasonic power it has.
Amazon $199.99$199.99
The EIWEI CD-E6 6L Dual-Frequency is the better ultrasonic cleaner overall, rated 2.9 to 2.6. The EIWEI CD-E6 6L Dual-Frequency leads on value. The Branson CPX3800H wins on features. The EIWEI CD-E6 6L Dual-Frequency costs $1,399.01 less ($199.99 vs $1,599).
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.
Branson CPX3800H
#9 in 3 to 10 LFull review
A programmable 5.7 L lab bath for labs that need repeatable runs. Shop users get far more tank for the money elsewhere.
Amazon $1,599$1,599
Which should you buy?
- Choose the EIWEI CD-E6 6L Dual-Frequency for value ($33.33 per liter ($199.99, 6 L) vs $280.53 per liter ($1,599, 5.7 L)).
- Choose the Branson CPX3800H for features (degas mode, dual or sweep frequency, gentle or adjustable power, drain valve, timer of 60 min or more vs degas mode, dual or sweep frequency, gentle or adjustable power, timer of 60 min or more).
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 | EIWEI CD-E6 6L Dual-Frequency | Branson CPX3800H |
|---|---|---|
| Overall rating | 2.9/5 | 2.6/5 |
| Value 30% | 59 $33.33 per liter ($199.99, 6 L) | 0 $280.53 per liter ($1,599, 5.7 L) |
| Ultrasonic power 25% | 0 ultrasonic power not published, scored as none | 0 ultrasonic power not published, scored as none |
| 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, gentle or adjustable power, timer of 60 min or more | 85 degas mode, dual or sweep frequency, gentle or adjustable power, drain valve, timer of 60 min or more |
| Warranty 10% | 0 warranty not published, scored as none | 50 2-year warranty |
Specifications
| EIWEI CD-E6 6L Dual-Frequency | Branson CPX3800H | |
|---|---|---|
| Tank | ||
| Capacity | 6 L | 5.7 L |
| Inner tank size | 30 x 15.5 x 15 cm | 290 x 150 x 150 mm (11.5 x 6 x 6 in) |
| Tank steel | SUS304 stainless | - |
| Drain | - | Yes |
| Basket included | - | No |
| Price per liter | $33.33/L | $280.53/L |
| Ultrasonics and heat | ||
| Frequency | 28/40 kHz | 40 kHz sweep |
| Temperature range | Up to 80 °C | Up to 69 °C (156.2 °F) |
| Controls | ||
| Controls | Digital | Digital |
| Longest timer | 99 min | 99 min |
| Degas mode | Yes | Yes |
| Gentle or adjustable power | Yes | Yes |
| Build | ||
| Weight | - | 12 lb |
| Warranty | - | 2 years |