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1/2 HP Submersible Sump Pump, Vertical Switch Type, Cast Iron Base Material

  • Item # 2P550
  • Mfr. Model # M98
  • Catalog Page # 2672
  • UNSPSC # 40151512
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  • Shipping Weight 33.2 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

Help evacuate water from flooded areas with this submersible sump pump. It features a screenless suction inlet, which helps prevent light debris accumulation and reduces the possibility of clogging or freezing up. The dependable, hermetically sealed motor also helps ensure long service life.

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Technical Specs

  • Item Submersible Sump Pump
  • Pump HP 1/2
  • Voltage - Pumps 120VAC
  • Discharge NPT 1-1/2" F
  • Max Head - Pumps 23 ft.
  • Pump Body Material Cast Iron
  • Base Material Cast Iron
  • Impeller Material - Pumps Polypropylene
  • Shaft Seal Material - Pumps Carbon, Ceramic
  • Cord Length - Pumps 15 ft.
  • Switch Type - Pumps Vertical
  • Max. Diameter Solids 1/2"
  • Amps - Pumps 9.40
  • Diameter 10-1/8"
  • Height 12"
  • GPM of Water @ 5 Ft. of Head 72
  • GPM of Water @ 10 Ft. of Head 61
  • GPM of Water @ 15 Ft. of Head 45
  • GPM of Water @ 20 Ft. of Head 25
  • Max. Liquid Temp. 130 Degrees F
  • Off Point 3"
  • On Point 9-1/2"
  • Thermal Protection Yes
  • Mechanical Seal CRB/CMC
  • Includes Float Operated 2 Pole Mechanical Switch
  • Alarm Included No
  • Hz 60 HZ
  • Manufacturers Warranty Length 3 yr.
  • Motor RPM 1725
  • Gauge/Conductor 18/3
  • NEC Cord Designation SJOW
  • Item - Sump Pumps Submersible Sump Pump
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Compliance and Restrictions

  • This product contains a chemical that is regulated under California Proposition 65.

    Warning: This product contains a chemical known to the State of California to cause cancer.

    Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.

Replacement Parts

Need help finding replacement parts? Please use the list below or call 1‑800‑GRAINGER (1‑800‑472‑4643)

Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.

Customer Reviews


1/2 HP Submersible Sump Pump, Vertical Switch Type, Cast Iron Base Material is rated 4.7 out of 5 by 6.
Rated 5 out of 5 by from We have a facility that has five pumps Zoeller sump pumps and have had good experience with these units. Our last purchase was to replace 1/3 hp pumps with 1/2 hp because 1/3 hp pumps were struggling to keep up with inflow. In one case our wet well is small and under certain inflow conditions the pumps cycle with less than 30 seconds of off time. They tend to work year after year without need of repair.
Date published: 2015-06-29
Rated 4 out of 5 by from The aplication we use this in, it works perfectly. We ordered these many times and will continue to. The price is alittle high (I have found them cheaper elsewhere--but usually have to wait 5+days to receive). We usually need it NOW. So will call or next day delivery is awesome.
Date published: 2013-07-24
Rated 5 out of 5 by from Excellen pump!
Date published: 2013-07-18
Rated 5 out of 5 by from Easy to use, well built pump and float assembly
Date published: 2013-06-27
Rated 5 out of 5 by from This isn't a trash pump so it doesn't perform well if there is alot of large debris in the water, but other than that, these pumps work great and I can rely on it working. I would recommend this pump.
Date published: 2012-09-05
Rated 4 out of 5 by from durable product but low cleance The pump is great we have had one of ten years but the clearance to the floor is not very high and it allows a lot of junk into the pump.
Date published: 2012-03-28
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