Little Giant 1-AT 1/200 HP Submersible Pump - Reliable Small Transfer

In this review the Little Giant 1-AT is evaluated as a compact, workhorse submersible pump for small commercial, industrial and residential needs; the single biggest reason to buy is its proven durability and reliable water transfer capability in applications like statuary fountains and pool cover drainage. The review looks at how the oil-filled motor, epoxy coated die-cast housing and screened inlet translate into long service life and trouble-free pumping for those who need a small pump that can run intermittently and withstand harsh conditions.

Key Features

• Applications: Works across commercial, industrial and home uses, making it suitable for fountains, water displays, air conditioners and hydroponics where a small submersible pump is needed.
• Built to last: The epoxy coated die-cast aluminum housing and oil-filled motor housing provide protection that supports long-term submerged use in demanding environments.
• Debris protection: The screened inlet prevents debris from reaching the impeller, reducing clogging and maintenance in dirty water situations.
• Pumping capacity: Delivers about 170 GPH at 1 ft lift with a 7 ft shutoff, which is useful for draining shallow basins and maintaining continuous water features.
• Motor safety: The impedance protected motor and CSA listing provide a level of electrical protection and compliance for safe intermittent operation.
• Convenience: A 10 ft cord and 1/4-in MNPT discharge make it straightforward to install in many standard setups without special fittings.

Who It's For

The Little Giant 1-AT is best for homeowners and small businesses that need a compact, dependable pump for routine water transfer tasks such as draining pool covers, powering small statuary fountains, moving coolant on machine tools, or supporting hydroponic circulation. It is a practical choice where continuous heavy-duty pumping is not required but reliability and durability matter.

Those who need very high flow rates, continuous full-time industrial pumping, or precise variable flow control should look elsewhere; this model is intended for submersible, intermittent use with a modest 170 GPH output and a maximum liquid temperature of 120 degrees F.

Pros & Cons

Pros

• Sturdy build and oil-filled motor housing contribute to long service life even when left submerged.
• Consistent pumping performance for small jobs with a 170 GPH rate at low lift and a useful 7 ft shutoff.
• Screened inlet and impedance protection reduce the likelihood of impeller damage and electrical faults.
• Good value for money given the durability reported by multiple users.

Cons

• Flow is modest; some users may find it slower than expected for larger or deeper drainage tasks.

Specifications

Brand	Little Giant
Model Type	Small submersible pump (submersible use only)
Pumping Capacity	170 GPH at 1 ft lift; 7 ft shutoff
Motor	1/200 HP, 115 Volts, 60 Hz, 1.1 running Amps, 70 Watts
Discharge	1/4-in MNPT
Cord Length	10 ft
Maximum Liquid Temp	Rated for intermittent up to 120 degrees F

Our Verdict

The Little Giant 1-AT is a sensible buy for anyone who needs a small, reliable submersible pump for intermittent water transfer and small fountain or drainage jobs; its robust construction and screened inlet deliver long life and low maintenance, making it a good value for routine use where very high flow is not required.

Frequently Asked Questions

Is this pump suitable for continuous operation?
It is rated for intermittent use and is best deployed for routine or periodic pumping rather than continuous, heavy industrial duty.

Can it handle debris and dirty water?
The screened inlet helps protect the impeller from debris, but very large solids or heavy sediment should be avoided.

What temperatures can the pump tolerate?
It is rated for intermittent liquid temperatures up to 120 degrees F.