A drain valve lets you empty dirty, oily solution into a bucket or through a hose without lifting and tipping the tank, which matters most on 6 L tanks and up.
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.
Best Ultrasonic Cleaners With a Drain Valve: Under 3 L
- Elmasonic P30H#1 of 1Full review
A dual-frequency lab and dental bath with every cleaning mode, for work where 80 kHz matters. Its price only makes sense for that kind of work.
Amazon $1,699$1,6992.8 L120 W37/80 kHz sweep
Best Ultrasonic Cleaners With a Drain Valve: 3 to 10 L
- SupRUCCI ST-6L Sweep Ultrasonic Cleaner#1 of 5Full review
A 6 L parts tank with sweep and adjustable power, aimed at carburetors, chains and gun parts.
Amazon $148.79$148.796 L180 W40 kHz sweep - VEVOR 6L Ultrasonic Cleaner#2 of 5Full review
A cheap 6 L tank with a drain for carburetors and tools. The listing leaves out the heater and timer details.
Amazon $89.90$89.906 L180 W40 kHz - Branson CPX5800H#3 of 5Full review
A 9.5 L programmable lab bath for repeatable processes. For cleaning parts, the price is hard to justify.
Amazon $1,851.99$1,851.999.5 L-40 kHz sweep - Branson CPX3800H#4 of 5Full 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$1,5995.7 L-40 kHz sweep - iSonic P4860 6L Ultrasonic Cleaner#5 of 5Full review
A long 6 L tank for parts that will not fit a square one. Import tanks give more features for less.
Amazon $379$3796 L-36 kHz
Best Ultrasonic Cleaners With a Drain Valve: 10 L and up
- DK Sonic DK-2200E 22L#1 of 5Full review
A 22 L tank with the most cleaning modes in its size, for motorcycle engines, chains and carburetors.
Amazon $394.99$394.9922 L480 W40 kHz - VEVOR 10L Degas Ultrasonic Cleaner#2 of 5Full review
A cheap 10 L tank with degas, gentle mode and a drain. VEVOR does not say how much ultrasonic power it has.
Amazon $127.24$127.2410 L-40 kHz - VEVOR 22L Ultrasonic Cleaner#3 of 5Full review
The cheapest large tank per liter, for carburetors, brass and engine parts. The listing is thin on heater and timer details.
Amazon $174.90$174.9022 L480 W40 kHz - Creworks 10L Ultrasonic Cleaner#4 of 5Full review
A plain 10 L tank with a drain, for auto parts and tools. Cheaper 10 L tanks now add degas and gentle modes.
Amazon $159.99$159.9910 L240 W- - Creworks 30L Ultrasonic Cleaner#5 of 5Full 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$299.9930 L600 W-
