Little Giant 1-AA-18 115 Volt, 1/200 HP, 170 GPH Small Submersible Permanently Oiled Pump for Fountains, Water Displays and Air Conditioners, 18-Foot Cord, Blue, 500500
$121.02
Price: $121.02
(as of Nov 12, 2025 09:11:04 UTC – Details)
LITTLE GIANT 1-AA-18 (500500) is a 1/200HP submersible pump with an 18-ft. power cord. This pump is suitable for a wide range of commercial, industrial & residential applications such as statuary fountains, water displays, air conditioners, machine tool coolants, hydroponics and other water transfer applications.
APPLICATIONS: for commercial, industrial and home applications including statuary fountains, water displays, air conditions, machine tool coolants, hydroponics and other water transfer applications.
BUILT TO LAST: with features such as epoxy coated die-cast aluminum housing; oil-filled motor housing; impedenace protected, and screened inlet which prevent debris from damaging the impeller
SMALL SUBMERSIBLE PUMP: for submersible use only
PUMP SPECIFICATIONS: 170 GPH at 1-ft. lift; 7-foot shutoff; maximum 3.0 PSI; 18-foot cord, 1/4-inch MNPT discharge; rated for intermitten liquid temperatures up to 120 degrees F
MOTOR SPECIFICATIONS: 1/200 HP, 115- Volts, 60 Hz, 1.1 running Amps, 70 Watts, Impedence Protected, CSA listed in the USA and Canada
Customers say
Customers find the water pump reliable and effective, particularly for removing water from pool covers and draining catch-basins, with one customer noting it works 24-7. The pump is heavy-duty and durable, with one customer reporting it lasted 12 years submerged and frozen during winter, and customers consider it good value for money. While some customers find it very fast, others say it’s not quick enough. The build quality receives mixed feedback, with some describing it as tough while others report issues with the plastic elbow breaking.
13 reviews for Little Giant 1-AA-18 115 Volt, 1/200 HP, 170 GPH Small Submersible Permanently Oiled Pump for Fountains, Water Displays and Air Conditioners, 18-Foot Cord, Blue, 500500
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$121.02
Steve –
Best Pump Out There!
This is probably my 4th purchase of the Little Giant pump over a 15 year period. They’re high quality and work great. I use it in my back yard fountain. I’ve had to replace them every 3-4 years purely due to my own negligence. I’ve haven’t seen a better pump in my searches.
Metricman –
Will siphon water off an above ground pool cover when not running
Excellent pump. This pump will siphon water off an above ground pool cover when not running after a short run to prime the drainage hose. You just need a hose that will extend below the height of the cover (the closer to the ground, the better, but not too much lying on the ground as that will slow the flow and NO LEAKS as that will allow air into the hose and stop the siphon effect). Just put the pump in the water, ensure that the end of hose is below the height of the cover and turn on the pump until water comes out of the end of the hose. Allow it to run until all the air is expelled and then turn it off (takes 20 seconds or so). Water should keep draining, but at a slower rate. Since the pump is no longer running, you can walk away and not have to constantly watch the water level. You cannot leave the pump running once the water is gone, else the pump can overheat and be damaged.
Jenny Rossoss –
The best submersible pump ever used one for years. So forever
Perfect as always! The best!
Dennis Walker –
Pool pump
Needs hoes attachment.
Liz –
Best pump I’ve ever owned. Three in 20 years.
I have owned three of these pumps for use in my outdoor fountain. I run the fountain all year long through all weather conditions including the 2016 snow storm. It is a powerful, subtle pump. It’s incredibly durable, reliable, and easy to clean.
Steve in Monterey –
Strong, quiet, leaks oil
This pump works great, except for one thing. Within an hour of starting it in 5 gallons of clean tap water, there is a scum of oil on the surface. We have been cleaning the container and replacing the water weekly for months, and the oil keeps coming back. Maybe this one is defective, but otherwise it works fine. In our use the water does not contact plants or animals – otherwise I would not use this pump.I gave two stars when I wrote the text above. I’m moving it down to one. These pumps are not supposed to leak oil. When you read the fine print of the warranty, it says the warranty does not apply if “used to pump or circulate anything other than fresh water at room temperature”. That eliminates a lot of what should be legitimate uses. In my case, I am circulating clean fresh water at about 48 F. Want to have an outdoor pond? Drain your pool cover after a cold rain? Do cool-water hydroponics or an aquarium? Drain a warm hot tub? Sorry. Not room temperature.
Lauren –
Nice Piece of Mind
I love this little guy! I bought it to use in my pool when it is closed up so that I can drain some water out if it gets too high. We’ve had the pool since 2013 and I’ve never had to drain any, but I came close one year and decided to get this little guy to keep in the shop just in case. Well last year was super rainy and I got to try out my Little Giant right away.Little Giant is a great description for this pump. It’s about the size of a large can of vegetables. The cord is long, but not excessively long. I had to get an extension cord to get it out to the near side of the pool. I know it says not to use one, but I imagine most people are going to have to.For our purposes, I put the pump on the second pool step sitting on some bricks so that it could draw down the water without going too far.Operating the pump is a simple plug-unplug affair. There isn’t a timer, on-off switch or anything like that. Also, keep in mind that the artesian effect is going to keep water flowing even after you turn it off. So if you don’t want it to keep pumping out, you’re going to have to remove it from the water. The pump definitely didn’t have any issue pushing water up about a foot and half and down a garden hose. I’m not sure how well it works at any greater depth.In summary – I love this little guy. He saved my bacon last winter on the pool overflowing at a very reasonable price. It’s a nice piece to have in the shop for emergencies.
Cath B –
great pump. I just bought my third for a fountain that has run for 33 years
great little pump
Pepe Munguia –
Llegó muy rapido y en perfecto estado, la uso para bombear refrigerante, trabaja muy bien y además es muy silenciosa.
thereader –
The best little pump. Several years ago it was recommended by someone who knows pumps. We use it for our fountain. I have a working one but when these were on sale I ordered 2 more for future use.
Blanca AG –
No llegó con el codo que muestra la imagen, nos la tendremos que ingeniar para poder sustituir eso
Tom Maier –
Lots of pressure and works very well.
Amazon Customer –
Works great. Used it to pump water from rain barrel to garden. The plastic strainer that snaps on the pump doesn’t fit very tight and can come off. That’s why 4 stars instead of 5.