1/3 HP sump pumps

Qualifies if

A primary sump pump rated at 3/10 to 1/3 horsepower.

Ranked by

Max flow (maker) (highest first)

Shown

The top 8 of 13 products in our catalog that meet the rule.

#1 · Max flow (maker): 63 GPM

Wayne CDU790 Sump Pump

Top suction and vertical float.

Check price at MRO SupremeFull reference

#2 · Max flow (maker): 55 GPM

Red Lion RL-SP33PED Pedestal Sump Pump

Adjustable snap-action float.

Check price at MRO SupremeFull reference

#3 · Max flow (maker): 50 GPM

Liberty Pumps 253 Sump Pump

Quick-connect cord.

Check price on AmazonFull reference

#4 · Max flow (maker): 50 GPM

Superior Pump 92333 Pedestal Sump Pump

Metal switch arm.

Check price at MRO SupremeFull reference

#5 · Max flow (maker): 50 GPM

Liberty Pumps 257 Sump Pump

One-piece housing, no lower seal.

Check price on AmazonFull reference

#6 · Max flow (maker): 48 GPM

Superior Pump 92372 Sump Pump

Vertical float.

Check price at MRO SupremeFull reference

#7 · Max flow (maker): 2,760 GPH

Superior Pump 92341 Sump Pump

Vertical float, 3-year warranty.

Check price at MRO SupremeFull reference

#8 · Max flow (maker): 46 GPM

Little Giant Compact Sump Pump Basin System

Preassembled with switch.

Check price on AmazonFull reference

How to choose between them

A 1/3 HP pump handles the water in most basements where the discharge rises less than about 10 ft. Bigger pumps empty a small pit too fast and short-cycle, which wears the switch.

Maximum flow is at zero lift and maximum head is where flow stops; at your real lift a pump moves less than either number suggests.

Rankings follow the rule and order stated above, using makers' published specifications and listed prices. How we research · Disclosure