Little Giant - Automatic - Hydroponic Pump - 500 GPH - 500-APCP - 519585

Your Price: $161.70
Retail Price:$231.00
Your Savings:$69.30(30%)
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Part Number:519585


500 GPH
All Little Giant Hydroponic pumps are manufactured with a corrosion-resistant body specifically designed for submersible use. Magnetic drive pumps offer better energy efficiency while direct drive pumps produce greater starting torque and more pressure. Great for applications that require intermittent pump cycling/water flow. Quiet operation for a better indoor experience. Removable intake screen for easy cleaning and maintenance. Garden hose connection and long power cord. Reliable automatic operation. An integrated, unique float switch design assures reliability and security while providing easy access to the float for servicing.

Several advantages including:

  • Great for Hydroponics and Pool Cover Drain
  • Very Reliable
  • Easy to remove float housing for servicing
  • Includes removable inlet filter screen
  • Automatic operation: On level: 2 3/8" Off Level: 1 3/8"
  • Great for applications that require intermittent pump cycling/water flow
  • Quiet operation for a better indoor experience
  • Discharge is suitable for 3/4" Garden Hose
  • CSA-US Rated (Alternative to the UL Mark)

Instruction Manual

Mfg Part # 519585
Model # 500-APCP
Brand Name Little Giant ®
Pump Type Mag-Drive Automatic Hydroponic Circulation Pump
Pump Flow @ 1 FT 500 GPH
Pump Flow @ 3 FT 355 GPH
Pump Flow @ 5 FT 250 GPH
Pump Flow @ 7 FT 150 GPH
Pump Flow @ 9 FT 82 GPH
Shut Off (Max Pump Height) 9.25 FT
Watts 45 W
Amps 0.8 A
Voltage / Hertz 115V / 60Hz
Cord Lenght 25 Ft with 3 Prong
Dischage Size 3/4" GHT
Aprox Pump Dim 6 3/4" L x 4" W x 5" H
Limited Manufacturer Warranty 1 Year

Special Note:

CAPACITY SIZING INFORMATION: The 500 GPH performance was obtained through a one inch I.D. tube, with friction losses neglected. Using a 5/8" garden hose, 50 feet long, reduces this performance to approximately 200 gallons per hour due to friction losses in the garden hose.


  • (1) 500 GPH Automatic Hydroponic Circulation Pump

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