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Optional Accessories
5
Model: 21999-0730
CFM
$6,820.20
Factory-Direct
Model: 21999-0316
$72.20
In-Stock
Model: 21999-0253
$752.40
Only 5 In-Stock
Model: 21999-0257
$982.80
Only 2 In-Stock
Model: 152-0000
$109.80
In-Stock
Features
- Electronic Solenoid Valve
- Innovative design- U.S. Patent # 6571830
- Routine draining prevents air contamination & prolongs tool life
- Built-In Strainer
- Self cleaning, no disassembly required
- Saves money- no additional strainer needed
- Dual Size Inlet
- Accomodates 1/4" inner diameter or 1/2" outer diameter NPT
- Integrates easily with many air systems
- 1/4" Turn Ball Valve
- Can be used as manual tank or filter drain
- Meets local, state and federal codes
- Solid State Adjustable Timer With Test Button
- Off Range 30 Seconds - 45 Minutes
- On Range .5 Seconds - 10 Seconds
- Simple to use & reliable; easy verification of valve operation
- Low Maintenance
- Just open the control valve to clean the filter screen
- Failure to drain your system can have catastrophic results
- See attachments under Specs tab for mounting instructions
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov
Specifications
21999-0177

General Information
Product Category
Air Compressor Parts
Motor
Voltage
120 Volt AC
Phase
1-Phase
Amp Draw
.17
Air Tools
Max Tool PSI
250
Overview
Product Category
Air Compressor Parts
Weight
7.25 Pounds
Consumer Warranty
1 Year
Commercial Warranty
1 Year
Reviews
(19)
Tsunami 21999-0177 Reviews & Ratings

Works Well With One Caveat
By Peter S
Connecticut
Purchased 03/10/2025 |
Review Posted 04/02/2025
Works extremely well at removing water from the bottom of the tank. When installed at the bottom of the tank, bypass valve lever hits the floor. This should be designed differently.
Peter S Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5

A Must
By Dave H.
Delaware
Purchased 05/20/2024 |
Review Posted 12/26/2024
An absolute must where I live given how humid it gets in the summer. This keeps the tank dry and free from water build up without having to think about it.
Dave H. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, I39d Buy It Again
Cons:
None

Works For A Couple Of Hours.
By Barry S.
Louisiana
Purchased 11/15/2024 |
Review Posted 12/17/2024
It works great for a couple of hours, then tries to empty my tank.
60 gal tank and compressor can’t keep up and starts to get hot. I bought the kit for it to try to avoid any issues. So now I just run 1 hour a day.
60 gal tank and compressor can’t keep up and starts to get hot. I bought the kit for it to try to avoid any issues. So now I just run 1 hour a day.
Barry S. Does Not Recommend This
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Rating Breakdown
4/5
4/5
1/5
3/5
Cons:
Bad Instructions

Great Option
By Clint E.
Wyoming
Purchased 10/28/2024 |
Review Posted 12/03/2024
I've bought other brands in the past, and this one works well.
Clint E. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, I39d Buy It Again

Works Great, Solid
By Kevin M.
Arizona
Purchased 02/03/2024 |
Review Posted 02/26/2024
Well built and solid. Wish there was a wall mount, i just used the drain line out the back with clamps.
Take note of the external and internal thread options before you craft an install plan.
Awesome value at this price.
Take note of the external and internal thread options before you craft an install plan.
Awesome value at this price.
Kevin M. Recommends This
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Rating Breakdown
4/5
5/5
5/5
5/5
Pros:
Easy To Use, Price, I39d Buy It Again
Cons:
None

Easy To Set Up
By Donna K
Kansas
Review Posted 11/24/2022
Added this to our air compressor for ease of removing water from tank. Set it to blow every 45 minutes for 15 seconds and it works like a charm.
Donna K Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Price, I'd Buy It Again, High Quality

Great Product With Minor Shortcomings.
By Boris B.
Fayetteville, Arkansas
Purchased 02/15/2022 |
Review Posted 04/19/2022
Works great. Wish it had longer timing intervals.
Boris B. Recommends This
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Rating Breakdown
4/5
5/5
5/5
4/5
Pros:
High Quality, Reliable, Durable, Quiet
Cons:
Max timing 45 min

Set It & Forget It
By David R.
Midvale, Utah
Purchased 08/24/2021 |
Review Posted 10/06/2021
Flexible installation with multiple sizes on inlet & outlet threaded connections. Startles cats trespassing in my driveway :)
David R. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Id Buy It Again

Nice Product!
By James U.
Rochester, Michigan
Purchased 08/14/2021 |
Review Posted 09/07/2021
This is a very nice thing to have for your air compressor. I don’t think the instructions were great and it didn’t come with the hardware you needed to connect it. But once I figured that out it is very nice I only plug it in when I’m working out in the garage for a few minutes. No way do I need that thing going off every 45 seconds. Why can’t it have a timer that goes every couple of hours?
James U. Recommends This
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Rating Breakdown
3/5
4/5
5/5
3/5

Great Product For Keeping Your Compressor Long Lasting
By Brian S.
Prior Lake, Minnesota
Purchased 03/11/2021 |
Review Posted 04/23/2021
If you purchase this product, make sure to buy the install kit, I did not and was not going to try and figure out what I needed.
I ordered it after the fact and it installed very easily and flawlessly.
I ordered it after the fact and it installed very easily and flawlessly.
Brian S. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
3/5
Pros:
Id Buy It Again, Easy To Use, High Quality, Quiet
Cons:
Bad Instructions, Expensive
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