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Little Giant - Automatic - Hydroponic Pump - 2-ABS - 300 GPH - 551021

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Little Giant - Automatic - Hydroponic Pump - 2-ABS - 300 GPH - 551021

Product Features
Product Reviews
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. You can also utilizing a sealed submersible pump, the 2-ABS is ideal for in-pan placement for condensate removal. An integrated unique float switch design assures reliability and security while providing easy access to the float for servicing. Our extensive product line allows you to choose which pump features are best for your application.

Several advantages including:

  • Great for Hydroponics and HVAC Application
  • Very Reliable
  • Permanently lubricated motor bearings requires no maintenance during life of pump
  • Epoxy-coated cast aluminum pump housing
  • Epoxy-coated cast aluminum pump Cover
  • Nylon Pump Impeller and Volute Cover
  • Nitrile Shaft Seal
  • Polyethylene Intake Screen
  • Stainless Steel Bracket
  • Easy to remove float housing for servicing
  • Includes removable inlet filter screen
  • Automatic operation: On level: 3" Off Level: 2"
  • Suitable for intermittent water temperature up to 120 °F
  • Great for applications that require intermittent pump cycling/water flow
  • Quiet operation for a better indoor experience
  • Hooded volute design with pre-screen to protect against debris
  • Oil-filled designed to maximize heat dissipation
  • Discharge is suitable for 1/2" I.D. vinyl tubing
  • Similar to item # 551020 and 551030
  • CSA-US Rated (Alternative to the UL Mark)

Instruction Manual

Mfg Part # 551021
Model # 2-ABS
Brand Name Little Giant ®
Pump Type Mag-Drive Automatic Hydroponic Circulation Pump
Pump Flow @ 1 FT 300 GPH
Pump Flow @ 3 FT 255 GPH
Pump Flow @ 5 FT 205 GPH
Pump Flow @ 10 FT 70 GPH
Shut Off (Max Pump Height) 11.8 FT
Motor Size 1/40 HP
PSI Rating 5.1 PSI
Watts 100 W
Amps 1.7 A
Voltage / Hertz 115V / 60Hz
Cord Lenght 9 Ft with 3 Prong
Dischage Size 1/4" MNPT
Intake Type Nylon Intake Screen
Aprox Pump Dim 8" L x 4" W x 4 3/4" H
Aprox Tank Dim 8.94" L x 4.56" W x 4.9" H
Limited Manufacturer Warranty 1 Year


  • (1) 300 GPH Automatic Hydroponic Circulation Pump with tank

Items may vary from picture

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Little Giant - Automatic - Hydroponic Pump - 2-ABS - 300 GPH - 551021