Model # 500RSU

Internet # 100189145

Store SKU # 784909

1/2 HP Submersible Sump Pump with Vertical Float Switch

$188.00 /each



Model # 500RSU

Internet # 100189145

Store SKU # 784909

The RIDGID 1/2 HP Submersible Sump Pump pumps at 4,920GPH at 0 ft. of lift or 3,840GPH at 10 ft. of lift. It has a high performance energy efficient motre that lengthens the life of the switch and the electrical components.

California residents: see  Proposition 65 information

  • Pumps up to 4,920 GPH 0 ft.
  • Float guard protects float operation from debris
  • Upper and lower sealed ball bearings sealed in a bath of oil for quiet performance and long life
  • Carbon/ceramic shaft seal for smooth operation and long life
  • Unique top suction design reduces clogging and prevents air lock conditions
  • Inlet allows the passing 1/2 in. solids
  • Vertical float switch for proven performance
  • 1-1/2 in. NPT discharge for easy installation and compliance to building codes
  • 11 in. diameter sump basin minimum

Info & Guides

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Maximum Pumping Height (ft.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Switch-Off Height (in.) 
Switch-On Height (in.) 
Amperage (amps) 
Battery Back-Up 
Cord Length (ft.) 
Discharge Flow @ 0 ft. (gallons/hour) 
Discharge Flow @ 10 ft. (gallons/hour) 
Discharge Flow @ 15 ft. (gallons/hour) 
Horsepower (hp) 
Housing Material 
Maximum Working Temperature (F) 
Minimum working temperature (F) 
Power Type Required 
Product Weight (lb.) 
18 lb 
Pump Switch Type 
Sump Pump Outlet Diameter Type 
1-1/2 FPT 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
CSA Listed 
Manufacturer Warranty 
3 Year Limited Warranty 


Price: $150 - $200
Horsepower (hp): .5
Voltage (volts): 120
Review Rating: 2 & Up


Rated 2.9 out of 5 by 149 reviewers.
Rated 5.0 out of 5.0 by Great Product!! I purchased a similar pump 5 years ago with a lifetime warranty. I've had to replace other pumps after two or three years, but bought the Ridgid for the lifetime warranty. It gets used nearly constantly for 6 months during a year and recently the motor failed. I no longer had my receipt but I called Ridgid and they were fantastic!!! The nearest service center was over 80 miles away, so they had me take it to the local Home Depot to verify the motor failed and they shipped out a replacement pump immediately. I need to give a shout out to Home Depot as well for their help, but Ridgid stood behind their product 100%. Never looked for an 'out' to back away from honoring the lifetime warranty. I would absolutely buy other Ridgid products and recommend to anyone. Great product and company. January 17, 2014
Rated 5.0 out of 5.0 by Quiet well built UL listed Ridgid brand name influenced decision to purchase as well as product was UL listed for safety. Installed very easily. Very quiet. Seemed to be well built. Would recommend this pump over the plastic competitor models. November 6, 2013
Rated 4.0 out of 5.0 by still have the lifetime warranty unit Bought one 5yrs ago when they were still lifetime warranty, it's written right on the box. Unit still works, but I don't store it in the pit in the dry season. Worst thing about these pumps is the rust on the long bolts that hold the motor to the base, they are rusting so bad I doubt they'd even come out to put stainless ones in. Maybe the new pumps are upgraded. Would buy another one if needed. April 8, 2014
Rated 2.0 out of 5.0 by Don't buy because of the name Bought it for the ridgid name because I needed a reliable pump. It failed after only 8 months while I was on vacation. Ruined vacation /ruined basement. March 6, 2013
Rated 2.0 out of 5.0 by Something that's made to spend it's life SUBMERGED IN WATER....... Should NEVER rust! After about 4 years it died.. Not the motor, not the switch but the metal rods that connect the whole thing rusted through and it came apart. I'll be looking elsewhere for the replacement. Unacceptable cheap engineering on this model. Any machine is only as good as its weakest link. October 10, 2012
Rated 2.0 out of 5.0 by Rusting Sump Pump Parts - seriously? The Rigid SP-500 worked for 3 yrs before the bolts that secured the base to the top eroded. This caused the pump to run continuously, not able to create suction to remove water. Timing of the failure during hurricane Sandy made for anxious days until it could be replaced. November 10, 2012
Rated 5.0 out of 5.0 by This pump has worked great for me :) I have had this pump for about 3 years. It has worked great for me. I just installed a flood sensor in my sump pit in case the power goes out, or the pump breaks. Then I decided to go onto Home Depot's website to buy another one of these pumps to have as a backup and seen all of these bad reviews :( I called Ridgid and asked them what is going on with these pumps. The guy was real professional and nice to deal with. He explained to me the reason why so many people have had the switch go out is because they did not install a check valve, or waited to long to change out the switch like it says to do in the manual (every 2 years). I took the time to install mine right in stead of using the geturdone method most people seem to be using these days. I plan on buying another one of these pumps for backup, despite all of the bad reviews because in my experience Ridgid makes quality products and they stand behind them ;) September 29, 2011
Rated 2.0 out of 5.0 by 3 of these pumps in 4 years..... When I decided to to put in a Watchdog back up sump pump 4 years ago I decided to change out my original sump pump that had been working just short of 20 years(yes, 20 years). I figured I had gotten my money's worth out of it and was due for it to quit at any moment and why not change it out while I'm re-piping for the WatchDog. The first Ridgid lasted just 18 months, but with their warranty they just swapped it out for a new one. No big deal right? Well the next lasted 2 1/2 years and this time it took a little convincing for them to honor their warranty because they didn't do any paperwork on the first exchange. But they did and I appreciate it and their customer service gets an A+ for that. So the good about the sump pump - it installs easy, is quiet, has the power to do the job, and if you like to change out the pump every few years the warranty is good(note that the the original lifetime warranty is now 3 years). The bad - a sump pump of this price should not have to be replaced every few years. The first pump just stopped working and the second pump the switch went bad. If you do buy this sump pump get the WatchDog Back-Up with it - the second time this pump went bad I was on a 10 day vacation and the WatchDog did its job perfectly. March 15, 2014
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