Model # 554530

Internet #203464514

Store SO SKU #1001055125

Little Giant Nextgen VCMX-20ULS 115-Volt Condensate Removal Pump

Little Giant

Nextgen VCMX-20ULS 115-Volt Condensate Removal Pump

$5058 /each
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Frequently Bought Together

Product Overview

Engineered with contractor input and little Giant quality. The new line of Nextgen condensate pump is designed to outsmart, outlast, out-cool, out-quiet, and out-perform every other condensate pump out there. With its 66-year history of commercial pumps and pump systems, Little Giant is one of the most powerful brand names in HVAC, recognized worldwide for its quality and reliability.

  • Oil resistant tank and check valve
  • Slim footprint design
  • 1/4-Turn removable check valve
  • External test/run lever
  • External Overflow Safety Switch

Info & Guides

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Maximum Pumping Height (ft.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Amperage (amps)
Bypass Valve Included
Bypass Valve Required
Cord Length (ft.)
Horsepower (hp)
Housing Material
Inlet Connection
Plain end
Maximum Discharge Flow (gallons/hour)
Maximum Discharge Pressure (psi)
Outlet Connection
Power Type Required
Product Weight (lb.)
Safety Switch
Tank Capacity (gallons)
Voltage (volts)

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
2 Years

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Customer Questions & Answers

Is the external overflow safety switch normally open or normally closed?

Asked by: Filibuck
The overflow switch can be configured for normally opened or normally closed operations. The instructions detail how to do so.
Answered by: Rusty
Date published: 2017-07-13

How long is the supplied tube and is there a max distance/elevation it can pump?

I would estimate that I need about 40 feet of tube and 5 feet of elevation for this to eject to a drain. Does this have the power to do so?
Asked by: brandeeno
no tube supplied at least in my purchase and I believe its 20 ft max elevation it can pump
Answered by: Zulu
Date published: 2016-10-25

Can this pump be used be used with and split system air conditioning?

Asked by: SR
Answered by: Zulu
Date published: 2016-10-25

Will this pump replace my older little giant white topped pump easily?

I mean will the input holes and mounting screws fit the same as the model VCMA 15ULST?
Asked by: Olboy
It should, it's one of the smallest size pumps out there and has three optional ports to connect to.
Answered by: Kevin
Date published: 2015-11-06
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Customer Reviews

Nextgen VCMX-20ULS 115-Volt Condensate Removal Pump is rated 4.6 out of 5 by 35.
Rated 1 out of 5 by from Well, this request for review came at a odd time. I've had the unit for approximately 1 month, wa... Well, this request for review came at a odd time. I've had the unit for approximately 1 month, was working just great, then yesterday I went into my utility room for something and big puddle on floor...Unit is non functioning :( Checked the plug, outlet, both working fine, tried to manually activate pump with switch, nothing happens. I think unit is dead. I am fairly handy, looked for solutions, but No troubleshooting section in manual or online. Am reaching out to company today to see what they will do since it states 2 year warranty. Will update this post with outcome.
Date published: 2017-03-07
Rated 3 out of 5 by from the last one didn't make it very long so I'm hoping this one will last. BOth worked fine but the... the last one didn't make it very long so I'm hoping this one will last. BOth worked fine but the first broke way too soon
Date published: 2017-03-13
Rated 5 out of 5 by from Replacing a pump that had stopped working, so setup was... Replacing a pump that had stopped working, so setup was rather easy with the existing pipes and tubes already there
Date published: 2017-04-23
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-07-19
Rated 4 out of 5 by from Excellent value pump with good features. I decided to buy this pump after I found the condensate from our A/C unit coming up from under the floor slab. I cut the drain pipe and directed it to a bucket for a while. An HVAC technician came out and looked at it. He recommended putting a condensate pump in which he would be happy to do for a few hundred dollars. I thought that was a great idea and knew I could do it myself. I looked around at various HVAC suppliers, but finally found this one on for a way better price. I found this pump to be a great value and I liked the features it came with, especially the high level switch. The pump is of all plastic construction, however it seems to be high quality. It pumps out all the water in just a couple of seconds, which I found surprising the first time I saw it run. It comes with a mounting bracket so you can mount it directly to the side of your air handling unit. Unfortunately, the pump didn't mount completely tight and it can move around a little while resting in the bracket. I don't think it will cause any problems though. You have to purchase some 3/8 I.D. tubing to run from the discharge fitting of the pump to a suitable drain. I went to the washing machine drain pipe. The feature I like the most is the HIgh Level Switch. It is a SPDT switch that can be used to shut down the air conditioning all together and/or sound an alarm. I wired it up to do both and it works awesome! I would recommend this pump to anyone.
Date published: 2015-11-09
Rated 5 out of 5 by from Great Unit Do yourself a favor and pay a little more for this unit than the base model. The ease of installation and removal for cleaning is well worth it.
Date published: 2016-08-03
Rated 5 out of 5 by from Works as advertised I ordered this pump partly based on reviews and it seemed like a good quality pump. The overflow switch can be wired into most modern furnace/AC control boards. This is a nice feature, especially if you are away from home with the AC on. Pump is quiet and has no issue pumping condensate vertically 6 feet and horizontally 20 feet into a deep sink (We has no nearby floor drains). Overall a great product at a great price.
Date published: 2013-08-22
Rated 5 out of 5 by from Piece of cake! Hard to say what I liked best about this product. In addition to the positives noted above, the manufacturer tech support was outstanding! They anticipated the homeowner installer, and were available every step of the way for me! I had to alter the product slightly in order to install in my crawl space using the drains as configured. I had to remove the safety switch, because I needed that drain port. I then placed a moisture sensor on the crawl space floor so that I would be alerted in the event of an overflow. They helped me figure out how to do all of this, and get the furnace up and running again. Really great support, they never once talked down to me because I wasn't a professional. Running real smooth for over a month now. No problems!
Date published: 2014-01-21
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