Little Giant Pond Pumps: A Simple Guide to Every Range

Little Giant has been making pumps for a very long time, and the name turns up everywhere from basements to backyard ponds. That is part of the problem. Search for a Little Giant pond pump and you get dozens of model numbers that tell you almost nothing. F20? WGP-65? PE-2F?

This guide clears it up. You will learn the three main Little Giant pond ranges, what each one is for, the real numbers for the popular models, and what they cost to run. That last part matters a lot with this brand, as you will see.

One honest note: this is desk research based on the details published on Amazon.com listings. We have not tested these pumps ourselves.

The three Little Giant pond pump ranges

Almost every Little Giant pump sold for ponds falls into one of these three groups.

Figures are from Amazon.com listings, checked in October 2026. GPH means gallons per hour, measured with no lift.

What do the words mean?

• Wet rotor. The spinning part of the motor runs in the water. There is no mechanical seal and no oil. Fewer parts to fail, and nothing to leak into the pond.
• Direct drive. The motor turns the impeller through a shaft. These pumps make a lot of pressure, so they push water high, but they usually use more power.
• Dual discharge. The pump has two outlets, so one pump can feed two things, such as a waterfall and a fountain.
• In-line. The pump can sit outside the pond with pipe on both sides, instead of under water.

Key insight: With Little Giant, the range matters more than the size. An F-Series pump and a WGP pump can move similar amounts of water, yet one can cost three times as much to run.

Are Little Giant pond pumps any good?

Little Giant is part of Franklin Electric, a large pump maker. The pond pumps have a solid reputation for being tough. Here is what the published details show.

What we like

• Oil-free designs. Both the F-Series and the WGP pumps are described as oil-free, which is safer for fish.
• The F-Series can run in or out of the pond. That is rare. You can start with it under water and move it in-line later.
• Pre-filters and screens included. The WGP pumps come with a removable pre-filter, and the F-Series with one or two pre-screens.
• Dual outlets on the WGP. Handy if you want a waterfall and a second feature without buying two pumps.
• 3-year warranty on the F-Series, according to the Amazon listings.

What to keep in mind

• The WGP pumps use a lot of power. The WGP-95 is listed at 700 watts. Run nonstop, that is over $1,000 a year at 17 cents per kWh.
• Model numbers are confusing. “F30-4000” means about 4,000 GPH, but “WGP-95” does not mean 95 of anything useful.
• Not every listing shows every spec. Always check the label and the manual for the exact model.

How to choose the right Little Giant pump

Step 1: What is the job?

A pond with a filter, a stream or a normal waterfall: F-Series. A very tall waterfall, or two features from one pump: WGP. A fountain, statue or tabletop feature: PE.

Step 2: How much flow?

For a pond with goldfish, plan to move the whole pond about once an hour. For a waterfall, allow about 100 GPH for every inch of spillway width. Our pond pump size calculator works it out for you.

Step 3: How high?

Measure from the pond surface straight up to where the water comes out, and add about 1 ft for every 10 ft of pipe. Pick a pump whose maximum lift is well above that. The F20-2700 tops out at 14.9 ft and the F30-4000 at 18.8 ft. The WGP pumps reach 25 to 30 ft.

Step 4: How many hours a day?

This is the step people skip. If the pump runs day and night, as a filter pump should, a low-watt pump saves hundreds of dollars a year. If it only runs a few hours for show, power use matters much less.

The most popular Little Giant pond pumps

1. Little Giant F30-4000: best all-round pond pump

Why it works: about 4,000 GPH for 215 watts is efficient for this size of pump. The problem it solves: strong, steady flow for a filter and waterfall without the heavy power bill of an older direct-drive pump.

2. Little Giant F20-2700: best for medium ponds

Why it works: it gives the benefits of the F-Series at a size that suits a typical garden pond. The problem it solves: a quiet, fish-safe pump that you can service outside the pond if you plumb it in-line.

3. Little Giant WGP-65-PW: best for high lift and two features

Why it works: direct-drive pumps build pressure, so they keep pushing at heights where other pumps give up. The problem it solves: getting water to the top of a tall feature, or feeding two features without a second pump.

4. Little Giant WGP-95-PW: best for very tall waterfalls

Why it works: sheer pressure. The problem it solves: a waterfall 10 ft or more above the pond that nothing else will reach. For round-the-clock use, the power cost is hard to justify.

5. Little Giant PE-2.5F-PW: best for fountains and statues

Why it works: good lift in a small body, which is what a tall statue needs. The problem it solves: a reliable little pump for a fountain that sits a few feet above its basin.

F-Series vs WGP: the power bill test

Here is the comparison that matters most. Two Little Giant pumps with nearly the same flow, side by side.

Yearly cost assumes 24 hours a day. Your electricity rate may be higher or lower.

The F30-4000 moves almost the same water as the WGP-95 for less than a third of the power. Over one year that is a difference of about $720. Over five years it is about $3,600. Unless you truly need 30 ft of lift, the F-Series is the better buy for a pump that runs all day.

Check the numbers for your own rate with our energy cost calculator, and read pond pump running costs for more ways to save.

How to install a Little Giant pond pump

Setting up one of these pumps is simple, but a few details decide how well it performs. Read the manual in the box first, then follow these steps.

1. Decide: in the pond or in-line? WGP and PE pumps go under water. An F-Series pump can do either. If your pond is deep or hard to reach, in-line makes servicing much easier.
2. Give it a firm, raised base. A flat stone a few inches off the pond floor keeps the intake out of the sludge.
3. Fit the pre-filter or pre-screens. They stop debris reaching the impeller.
4. Use pipe that matches the outlet. That is 1-1/2 inch on the F20, 2 inch on the F30, and 1-1/4 inch on each WGP outlet. Going smaller wastes flow.
5. Add a ball valve after the pump. It lets you trim the flow and isolate the pump for cleaning. Never put a valve on the intake side.
6. Fill it with water before starting. Lower a submersible pump in at an angle so trapped air escapes. Make sure an in-line pump is flooded.
7. Plug into a GFCI-protected outdoor outlet and leave a drip loop in the cord.

A word on in-line use

Running an F-Series pump outside the pond is a real advantage, but it comes with one firm rule: the pump must never run without water in it. Place it below the pond’s water level where you can, so water flows to it by gravity. Keep the suction pipe short and at least as wide as the pump’s inlet. If you are unsure whether your layout will keep the pump flooded, ask a pond installer before you commit.

Little Giant vs other pond pump brands

How does Little Giant compare? In simple terms, it is a pump maker first and a pond brand second. That shows in the products. They are plain, tough and built around the motor, with fewer of the pond-specific extras, such as phone apps and matching skimmers, that brands like Aquascape offer.

• Choose Little Giant if you want a straightforward, oil-free pump, like the idea of running it in-line, or need the very high lift of the WGP range.
• Look at Aquascape if you want adjustable flow you can control from your phone, or a pump designed to match a skimmer and filter system. See our Aquascape pond pumps review.
• Look at Tetra for a simple, low-cost pump for a small pond.

Whichever brand you lean toward, the rule is the same: compare the flow at your lift and the watts it takes to get there. Our pond pump comparison shows how.

6 common mistakes (and how to fix them)

1. Buying a WGP for an all-day filter pump. Fix: choose an F-Series unless you need the lift.
2. Judging by model number. Fix: read the flow, lift and watts, not the name.
3. Using small pipe on an F30. Fix: it has a 2-inch outlet for a reason. Use 2-inch pipe.
4. Using a PE pump to run a pond. Fix: PE pumps are for fountains. Use an F-Series for ponds.
5. Running an in-line pump dry. Fix: when a pump sits outside the pond, make sure it stays flooded and follow the manual on placement.
6. Forgetting the filter’s maximum flow. Fix: read how to match a pump to a filter.

Pro tips for Little Giant owners

• Use both pre-screens on the F30. Why it works: more screen area takes longer to clog, so you clean it less often.
• Only need one outlet on a WGP? Close off the second one the way the manual shows. Why it works: all the flow then goes to one feature.
• Plumb the F-Series in-line if the pond is hard to reach. Why it works: you can service it on dry land. See submersible vs external pumps.
• Clean the screens when flow drops. Why it works: a blocked intake makes any pump run hot. Our cleaning guide shows how.
• Measure real power use with a plug-in meter. Why it works: you will know your true cost, not the label maximum.

Real-life examples

These are typical situations we put together to show how the choice works. They are illustrations, not customer reviews.

The 3,500-gallon pond with a stream

The setup: a large liner pond, a pressure filter and a 6 ft waterfall, running all year. The choice: the F30-4000. It has the flow, enough lift, and a running cost the owner can live with.

The tall rock wall

The setup: a narrow waterfall 12 ft up a stone retaining wall, switched on for evenings and weekends. The choice: the WGP-65-PW. Its 25 ft maximum lift copes with the height, and part-time use keeps the bill sensible.

The lion-head fountain

The setup: a wall fountain where water must climb 5 ft to a spout. The choice: the PE-2.5F-PW. Small, with enough lift to spare.

Frequently asked questions

Which Little Giant pump is best for a koi pond?

An F-Series pump such as the F30-4000. It is oil-free, described as safe for fish, and efficient enough to run day and night.

What does WGP stand for?

It is Little Giant’s name for its dual-discharge waterfall and pond pumps. The number after it is a model size, not a flow figure.

Can Little Giant F-Series pumps be used out of water?

The listings say the F-Series can be used submerged or in-line. An in-line pump must still stay full of water, so follow the manual for where to place it.

How long is the warranty?

The Amazon listings for the F20-2700 and F30-4000 show a 3-year manufacturer warranty. Check the current listing for the model you choose.

Why are WGP pumps so expensive to run?

They are high-pressure direct-drive pumps. That design gives great lift but uses much more electricity than a wet-rotor pump of similar flow.

Are Little Giant pumps safe for fish?

The F-Series and WGP pumps are both described as oil-free. The F-Series listing specifically describes the design as safe for pond life.

Your final buying checklist

How we researched this guide

This article is desk research, not a hands-on test. In October 2026 we collected the specifications shown on the Amazon.com listings for each product. Where sources gave different numbers, we showed the range or flagged it. We do not quote prices, star ratings, or stock levels because they change daily. Manufacturers also update products, so please confirm the details on the current listing and in the manual before you buy.