Little Giant 3-MD-SC Magnetic Drive Pump, 581503
Little Giant 3-MD-SC Magnetic Drive Pump, 581503

3-MD-SC Magnetic Drive Pump for Semi-Corrosive, 1/12 HP, 115V

Little Giant

Brand: Little Giant

Mfr Part#: 581503

Model: 3-MD-SC

UPC#: 010121815032

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$170.95 / each & Free Shipping
  • Description
  • Literature
  • Reviews (2)
  • FAQs

Little Giant 3-MD-SC (581503) 1/12HP Magnetic Drive Pump for semi-corrosive chemicals and solutions. Designed for in-line, non-submersed use.

Little Giant MD-SC Magnetic Drive Pumps feature 6ft power cord with 3-prong plug, leakproof, seal-less magnetic drives, 99.5% pure alumina ceramic shaft and thrust washers. Spindle shaft is supported at both ends to prevent impeller damage during start-up and stop of pump. For excellent chemical resistance, volute, magnet housing and impeller of the Little Giant Magnetic Drive Pump are glass-filled polypropylene.

The Little Giant 3-MD-SC has 3/4" FNPT Intake and 1/2" MNPT Discharge.


  • Specific Gravity up to 1.1';
  • Thermally protected, open, fan-cooled motor;
  • 6' power cord with 3-prong plug;
  • Sleeve bearings;
  • Ambient Air Temperature up to 77F;
  • Fluid Temperature up to 150F.

Technical Specifications:

  • Horsepower: 1/12HP;
  • Flow: 750 @ 1' of Head;
  • Cord Length: 6';
  • Shut Off Heat: 21.9';
  • Voltage 115V;
  • Intake: 3/4" FNPT;
  • Discharge: 1/2" MNPT;
  • Hertz: 50/60Hz;
  • Watts: 190W;
  • Weight: 8.5 lbs;
  • Height: 5";
  • Width: 4";
  • Length: 9.8";
  • Certification: UR/C-CSA.
3-MD-SC Magnetic Drive Pump for Semi-Corrosive, 1/12 HP, 115V has an average 5.0 out of 5 rating based on 2 user reviews.
Still working
By Verified Buyer (from Punta Gorda, FL) on 2/11/2016
The original pump for my air conditioner/heater in my Hunter 33 seized up after 10 years of use. found this exact replacement. Arrived quickly, well packaged and so far after three weeks of continual pumping it's still working great. Very pleased.
Was this review helpful?  Yes / No
Works great. Quiet and direct replacement.
By Hunter Sailor (from Annapolis) on 9/20/2015
This was a direct replacement for my A/C cooling water pump on my Hunter 380 Sailing Vessel. Delivery was prompt. Shipping package was appropriate. Very pleased with Pex Universe as supplier of this product
Was this review helpful?  Yes / No
Indicate an email address where you wish to receive the answer to your question.
Enter numbers shown above without spaces. This step helps us to prevent automatic submissions.
The following was added to your shopping cart: ×

Forgot Your Password?

Enter your e-mail address below.
You will receive an e-mail
with password reset instructions.


Estimate Delivery Date & Cost

Ship to Zip Code:
Qty (Optional):