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6699 SUB 1500 1/4 HP Submersible Utility Pump, 1500 GPH1 / 7
Product guide

6699 SUB 1500 1/4 HP Submersible Utility Pump, 1500 GPH

The 6699 SUB 1500 is a corded submersible utility pump listed at 1/4 hp and up to 1500 GPH. Its stated 23-foot lift and included hose adapters suit temporary water removal and tankless-heater flushing, but the listing says not to use it with dirty water or expandable hoses.

At a glance

  • The listing states a maximum flow of 1500 GPH and a maximum lift of 23 feet. These are separate limits, not a guaranteed flow at maximum lift.
  • The bottom screen is described as passing solids up to 1/5 inch and pumping water down to 1/12 inch from the surface.
  • Two hose adapters are listed: a 1-inch discharge adapter and a 3/4-inch garden hose adapter.
  • The stated uses include tankless water-heater flushing, hot tubs, pools, garden ponds and flooded areas.
Price
$39.99Save 18%

Reference price: $48.99

Price checked: Nov 14, 2026

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Often bought together

Pros and cons

Pros

  • The two stated hose adapters offer connection options for 1-inch discharge and 3/4-inch garden hoses.
  • A listed 10-foot cord gives some reach from the outlet, though it does not establish that an extension cord is suitable.
  • The stated low-water draw level may help with shallow draining where the surface is even.

Cons

  • The listing rules out dirty water and expandable hoses, limiting the types of water and hose setups it is intended to handle.

Technical specifications

21 specifications
Identity and power
Brand6699
ModelSUB 1500
Power configurationCorded Electric
Motor rating0.25 hp
Voltage115 volts
Voltage and frequency115V/60Hz
Pumping
Maximum flow rate25 gpm
Maximum rated flow1500GPH
Maximum lifting height23 feet
Maximum delivery height23FT
Maximum grain size1/5Inch
Maximum submersible depth16FT
Lowest pump starting level4Inch
Lowest water sucking level1/12Inch
Dimensions and installation
Dimensions listed5.9"L x 5.9"W x 8.7"H
Weight listed2.81 kg
Power cord length10FT
Materials and protection
Material listedThermoplastic
ColorYellow
Connections
Discharge hose adapter1" Dia
Garden hose adapter3/4"

What to know before buying

Listing details to confirm

Listing details are inconsistent about flow presentation, giving 1500GPH in the title and specification while also listing 25 gpm as maximum flow. The page does not establish flow under a particular lift or hose setup. Confirm the expected operating conditions and adapter compatibility before purchase.

What’s in the box

Included
  • Sump pump
  • 2 adapters

Who is it for?

A good fit for

  • People draining relatively clean water from tubs, pools, ponds or flooded areas who can use a corded pump.
  • Tankless water-heater flushing where the stated hose adapters and flow suit the planned setup.

Less suited to

  • People pumping dirty water or using expandable hoses, which the listing says are unsuitable.
  • Buyers who need a stated flow rate under a specific lift, or confirmed continuous-duty or automatic operation. Those details are not provided.
6699 SUB 1500 1/4 HP Submersible Utility Pump, 1500 GPH · photo 2
Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 307 ratings
  • 5 stars73%73%
  • 4 stars9%9%
  • 3 stars5%5%
  • 2 stars2%2%
  • 1 star11%11%

Customer feedback reports reliable operation, convenience and useful pumping capacity, particularly for tankless water-heater flushing. Experiences are mixed on build quality, pumping speed and value, with reports of cracked housing and the pump tipping on its side. The listed 25 gpm maximum is relevant to expected capacity, but does not settle those differing experiences or promise a particular rate in a given setup.

Positive themes

  • Customers report reliability and ease of use, including convenient plug-in operation.

Negative themes

  • Some customers report housing cracks and the pump tipping onto its side.

Mixed feedback

  • Feedback differs on pumping speed and power, build quality and value for money.

Frequently asked questions

Can this pump handle dirty water?

The listing says it is not suitable for dirty water. It describes a bottom screen that handles solids up to 1/5 inch, but that does not override the stated restriction.

What hose connections are listed?

The page lists a 1-inch discharge hose adapter and a 3/4-inch garden hose adapter. Check that your hose setup matches before use.

How low can it pump water?

The specification lists a lowest water-sucking level of 1/12 inch. This is a listing claim and may depend on the surface and setup.

Is the listed maximum flow guaranteed at the maximum lift?

No such combined performance is stated. The page lists 25 gpm and a maximum lifting height of 23 feet separately, so it does not confirm flow at that height.

6699 SUB 1500 1/4 HP Submersible Utility Pump, 1500 GPH · photo 3
Additional product photo 3

Alternative options

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