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

Little Giant - Automatic - Hydroponic Pump - 500 GPH - 500-APCP - 519585
Suggested Retail$238.00
Our Price$166.60You save30%
Usually ships the same business day

Product Details

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 Length 25 Ft with 3 Prong
Discharge 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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Estimated Delivery Date

All of our in-stock products usually ship the same or next business day. The table below will show you an estimated* date your order will arrive. See special notes below

Shipping Method Approximate Processing Time Approximate Shipping Time Estimated Delivery Date
Eco-Saver Shipping 1-3 business days if ordered by 12:00 Noon EST 2-10 Business Days
Ground Service Same to Next day if ordered by 1:00 PM EST 2-7 Business Days
3-day Select Same day if ordered by 1:00 PM EST 3 Business Days
2nd Day Ai Same day if ordered by 1:00 PM EST 2 Business Days
Next Day Air Same day if ordered by 1:00 PM EST 1 Business Day
Next Day Air Saver Same day if ordered by 1:00 PM EST 1 Business Day by End of Day
UPS Standard - Canada Within 24 to 72 hours 5-10 Business Days

* Delivery dates are estimates only and can vary due to backorders, order processing delays, payment information, customs clearance, and various shipping delays that may be out of our control. Please refer to the specific product page which will show additional information, as some items may require additional shipping time or ship directly from our suppliers. After we receive your order, an order confirmation email is sent automatically from within our website which will show stock status for the item(s) on your order. Business days are Monday - Friday with Holidays excluded. When your order ships, we add your e-mail address into the UPS software which will send you tracking information, so you can track shipment status online, anytime! Here is a link to our complete shipping information including a UPS transit map: Click Here