(800)865-5931 Closed Thur 11/26 - Sun 11/29, Reopen Mon 11/30 8am, CT
Free Shipping See Details
No Sales Tax See Details
Enter your zip for personalized product and service recommendations.
Actual product may vary from photos.
The Little Giant VCMX-20ULST has been discontinued.
Please call us for a suitable alternate product.

(800) 865-5931

Closed Thur 11/26 - Sun 11/29, Reopen Mon 11/30 8am, CT

The Little Giant NXTGen™ VCMX-20ULS has an oil resistant tank and check valve that eliminates the problem of cracked tanks from exposure to oil.  The pump features a safety switch that can be connected to shut down the air system, or wired to an alarm to warn of possible tank overflow.  The VCMX-20ULS is rated for high-efficiency condensing gas furnace applications that produce an acidic condensate.  The VCMX-20ULST also comes with 20' of 3/8" drain tubing.

Air conditioners and high-efficiency furnaces have a water drain on them, as water is collected while they operate. This water drains out a tube to your floor drain. But what if you don't have a floor drain? Then you can use this condensate pump to run the drain tube anywhere you like, such as in a sink, or into a drain pipe. This condensate pump attaches next to the furnace or air handler, where it collects the water. You connect a 3/8" drain tube to the pump, and run it where ever you like, including veritically overhead, since it can pump the water against gravity. An automatic float-switch turns it on periodically to empty the drain water.

Product Features:

  • Slimmer footprint: 4.8" x 10.2" x 6.5"
  • Oil resistant tank and check valve
  • 1/4-turn check valve
  • External overflow safety switch
  • External test / run lever
  • Patent-pending cooling design
  • Steel mounting bracket for use on either side of the tank
  • 20' shut off head
  • 6' power cord
  • 20' of 3/8" drain tubing
  • cCSAus listed


See Chart
Fluid Temperature Range (°F)
Up to 120°F
1.5 / 93
Horse Power

The amount of power generated by the motor. One horsepower (HP) is equivalent to 746 watts.

Horse Power
1/30 HP
Discharge Size
3/8 in OD Barbed
Product Weight
5.2 lbs
4 4/5 Inches
6 1/2 Inches
115 Volts
60 Hz