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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.

lg_manual.pdf
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
$157.89
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
$213.99
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
$236.99
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
$154.99
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
$210.99
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
$234.99
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...$42.19

No Coral Reef Supply image.  LG_SHAFT_2Ceramic shaft for Little Giant 2 MDQ-SC MDQX-SC Pumps   more...$42.19
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...$23.19

No Coral Reef Supply image.  LG_IMPELLER_2MDQXSCImpeller for Little Giant 2 MDQX-SC Pumps.   more...$33.69

No Coral Reef Supply image.  LG_IMPELLER_3MDQSCImpeller for Little Giant 3 MDQ-SC Pumps.   more...$40.69

No Coral Reef Supply image.  LG_IMPELLER_3MDQXSCImpeller for Little Giant 3 MDQX-SC Pumps.   more...$33.69

No Coral Reef Supply image.  LG_IMPELLER_4MDQSCImpeller for Little Giant 4 MDQ-SC Pumps.   more...$84.49

No Coral Reef Supply image.  LG_IMPELLER_4MDQXSCImpeller for Little Giant 4 MDQX-SC Pumps.   more...$63.99
Volute
No Coral Reef Supply image.  LG_VOLUTE_2MDQSCVolute for Little Giant 2MDQ-SC Pumps.   more...$20.19

No Coral Reef Supply image.  LG_VOLUTE_3MDQSCVolute for Little Giant 3MDQ-SC Pumps.   more...$20.19

No Coral Reef Supply image.  LG_VOLUTE_4MDQSCVolute for Little Giant 4MDQ-SC Pumps.   more...$35.29

No Coral Reef Supply image.  LG_VOLUTE_MDQXSCVolute for Little Giant 2,3,4-MDQX-SC Pumps.   more...$43.69
Thrust Washer
Aquarium Supply Ceramic Thrust Washer for Little Giant Pumps LG_WASHERCeramic thrust Washer for Little Giant Pumps.   more...$10.69