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Little Giant Aquarium Water Pumps
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Little Giant Magnetic Drive Pressure & Circulation Aquarium Water Pumps

Little Giant's comprehensive line of magnetic drive pumps are designed for freshwater and marine aquariums.

Magnetic Drive Pump Features

  • Leakproof, seal-less magnetic drive
  • No maintenance due to seal wear
  • No seal friction to reduce motor horsepower
  • Only chemical resistant materials are in contact with fluids
  • Dynamically balanced drive magnet for long motor bearing life
  • Magnetic coupling design acts as a clutch to eliminate motor burnout and overloading under adverse conditions
  • Pumping heads are easily rotated, cleaned or serviced with no special tool requirements
  • Spindle shaft is supported at both ends to prevent impeller damage during start-up and stop of pump
  • Magnet housing acts as an insulator to prevent motor heat from being transferred to the fluid being pumped
  • All threaded intake and discharge ports are USA (American) standard taper pipe threads (NPT).
  • Thermal overload protection
All pumps have GF polypropylene volute. Ceramic impeller shaft. Polyproplene/creamic magnet impeller. 115 volts. 60 Hz. 6' power cord with molded plug. Thermally protected motor. UL listed and CSA Certified.
Little Giant Circulation Pump
Little Giant Pressure Pump
Little Giant Pump Parts
Little Giant Circulation Pump
1/30 HP
Aquarium Supply Little Giant 2-MDQX-SC Circulation Pump LG_2-MDQX-SC2-MDQX-SC 1/30 horssepower. Fresh-water or Marine Aquariums 100-150 gallons. 770 gph@1ft, 640 gph@3ft, 370 gph@6ft. 8.1ft max head. 1" FNPT in & 1" MNPT out. 115v 60Hz. 5.3"H x 4"W x 9.4"L.   more...List Price
$240.00
$152.99
1/15 HP
Aquarium Supply Little Giant 3-MDQX-SC Circulation Pump LG_3-MDQX-SC3MDQX-SC 1/15 horsepower. Fresh-water or Marine Aquariums 200-250 gallons. 1,100 gph@1ft, 1,000 gph@3ft, 875 gph@6ft, 450 gph@12ft. 14.0ft max head. 1" FNPT in & 1" MNPT out. 115v 60Hz. 5.3"H x 4"W x 11.9"L.   more...List Price
$323.00
$205.99
1/10 HP
Aquarium Supply Little Giant 4-MDQX-SC Circulation Pump LG_4-MDQX-SC4MDQX-SC 1/10 horsepower. Fresh-water or Marine Aquariums. 1325 gph@1ft, 1225 gph@3ft, 1080 gph@6ft, 675 gph@12ft, Shut off @ 17.0ft, 1" FNPT in & 1" MNPT out. 115v 60Hz. 5.3"H x 5.5"W x 11"L.   more...List Price
$358.00
$228.39
Little Giant Pressure Pump
1/30 HP
Aquarium Supply Little Giant 2-MDQ-SC Pressure Pump LG_2-MDQ-SC2-MDQ-SC 1/30 horsepower. Fresh-water or Marine Aquariums 90-140 gallons. 510 gph@1ft, 465 gph@3ft, 410 gph@6ft, 250 gph@12ft. 14.4ft max head. 1/2" FNPT in & 1/2" MNPT out. 115v 60Hz. 5"H x 4"W x 9.1"L.   more...List Price
$235.00
$154.43
1/15 HP
Aquarium Supply Little Giant 3-MDQ-SC Pressure Pump LG_3-MDQ-SC3-MDQ-SC 1/15 horsepower. Fresh-water or Marine Aquariums 100-150 gallons. 700 gph@1ft, 650 gph@3ft, 590 gph@6ft, 425 gph@12ft, 18.0ft max head. 3/4" FNPT in & 1/2" MNPT out. 115v 60Hz. 4.9"H x 3.9"W x 11.4". Item 581506.   more...List Price
$319.00
$203.59
1/10 HP
Aquarium Supply Little Giant 4-MDQ-SC Pressure Pump LG_4-MDQ-SC4-MDQ-SC 1/10 horsepower. Fresh-water or Marine aquariums. 850 gph@1ft, 810 gph@3ft, 765 gph@6ft, 640 gph@12ft. 24.3ft max head. 1" FNPT in & 1/2" MNPT out. 115v 60Hz. 5"H x 5.5"W x 10.6"L.   more...List Price
$355.00
$226.49
Little Giant Pump Parts
O-Ring
No Coral Reef Supply image. LG_ORINGO-Ring for Little Giant 2, 3, 4 MDQ-SC MDQX-SC Pumps.   more...$3.49
Ceramic Shaft
No Coral Reef Supply image. LG_SHAFT_3&4Ceramic shaft for Little Giant 3, 4 MDQ-SC MDQX-SC Pumps.   more...$38.29
No Coral Reef Supply image. LG_SHAFT_2Ceramic shaft for Little Giant 2 MDQ-SC MDQX-SC Pumps   more...$38.29
Magnet Housing
No Coral Reef Supply image. LG_HOUSING_3&4Magnet Housing for Little Giant 3, 4 MDQ-SC MDQX-SC Pumps.   more...$24.29
No Coral Reef Supply image. LG_HOUSING_2Magnet Housing for Little Giant 2 MDQ-SC MDQX-SC Pumps.   more...$18.39
Impellers
No Coral Reef Supply image. LG_IMPELLER_2MDQSCImpeller for Little Giant 2 MDQ-SC Pumps.   more...$20.95
No Coral Reef Supply image. LG_IMPELLER_2MDQXSCImpeller for Little Giant 2 MDQX-SC Pumps.   more...$30.29
No Coral Reef Supply image. LG_IMPELLER_3MDQSCImpeller for Little Giant 3 MDQ-SC Pumps.   more...$36.95
No Coral Reef Supply image. LG_IMPELLER_3MDQXSCImpeller for Little Giant 3 MDQX-SC Pumps.   more...$30.49
No Coral Reef Supply image. LG_IMPELLER_4MDQSCImpeller for Little Giant 4 MDQ-SC Pumps.   more...$76.59
No Coral Reef Supply image. LG_IMPELLER_4MDQXSCImpeller for Little Giant 4 MDQX-SC Pumps.   more...$58.19
Volute
No Coral Reef Supply image. LG_VOLUTE_2MDQSCVolute for Little Giant 2MDQ-SC Pumps.   more...$18.39
No Coral Reef Supply image. LG_VOLUTE_3MDQSCVolute for Little Giant 3MDQ-SC Pumps.   more...$18.39
No Coral Reef Supply image. LG_VOLUTE_4MDQSCVolute for Little Giant 4MDQ-SC Pumps.   more...$32.19
No Coral Reef Supply image. LG_VOLUTE_MDQXSCVolute for Little Giant 2,3,4-MDQX-SC Pumps.   more...$39.69
Thrust Washer
No Coral Reef Supply image. LG_WASHERCeramic thrust Washer for Little Giant Pumps.   more...$9.69