Furnace and AC · Little Giant

Little Giant VCMA-20UL Condensate Pump

The VCMA-20 without the safety switch

Updated October 2026

Quick verdict

Fine where an overflow switch already exists.

Strength
Same motor as the VCMA-20ULS.
Trade-off
No overflow protection of its own.
Right buyer
Replacements in systems with a separate float switch.
Horsepower
1/30 HP
Voltage
115 V
Power source
Corded Electric
Dimensions (seller)
11"L x 5"W x 7"H
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Why it matters

The VCMA-20UL shares the 1/30 HP motor, 1/2 gallon ABS tank and removable 3/8 in barbed check valve of the VCMA-20 range, but leaves out the overflow detection switch.

That makes sense only when the equipment already has its own overflow protection, such as a float switch in the drain pan. For most installs the ULS version is the safer buy.

Who it's for, and who should skip it

Good fit if

  • Systems with separate overflow protection
  • Like-for-like replacements

Look elsewhere if

  • New installs without a pan switch
  • Unattended equipment
  • Lifts you haven't measured

Pros and cons

Pros

  • 1/30 HP motor
  • Removable check valve
  • Compact tank

Cons

  • No safety switch
  • Fewer stated specs on the listing
  • Tubing not included

Limitations to weigh

  • Clean the tank, float and check valve every six months or so; algae and slime cause most condensate pump failures.
  • Without a safety switch, a failed pump can overflow the tank; add a pan float switch if the equipment has none.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

MaterialAcrylonitrile Butadiene Styrene (ABS)Retailer
Dimensions (seller)11"L x 5"W x 7"HRetailer
Voltage115 VRetailer
Model number554421Retailer
Horsepower1/30 HPRetailer

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Final verdict

Get the ULS version unless you already have overflow protection.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

Does the VCMA-20UL have a safety switch?
No; the VCMA-20ULS adds the overflow detection switch.
What horsepower is it?
1/30 HP.