Model # FP0026-10

Internet # 100021846

Sump Pump Inline Check Valve

$6.30 /each



Model # FP0026-10

Internet # 100021846

Store SO SKU # 1000895678

The Flotec Sump Pump Inline Check Valve features a flapper designed to help prevent pumped water from flowing back into the basin. This check valve has an NPT inlet connection of 1-1/4 in. and a slip-fit outlet connection that can be 1-1/4 in. or 1-1/2 in. Easy to install, this corrosion-resistant check valve is constructed of rubber.

  • Flapper design helps prevent water from entering back into the basin
  • Rubber construction
  • Corrosion resistant
  • 1-1/4 in. NPT inlet
  • Slip-fit outlet connection can be 1-1/4 in. or 1-1/2 in.
  • Easy to install

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Brand compatibility 
Product Weight (lb.) 
.6 lb 
Warranty / Certifications
Manufacturer Warranty 
90 Days 


Price: $0 - $10
Brand: Flotec
Review Rating: 2 & Up
1 Question0 Answers

Customer Questions & Answers

Sump Pump Inline Check Valve
Sump Pump Inline Check Valve

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Will this product work installed horizontally?

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January 19, 2016
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Rated 3.0 out of 5 by 115 reviewers.
Rated 5.0 out of 5.0 by great fix for a leaking plastic check valve! Our son's house had a leaking plastic check valve. The pipe wasn't installed very straight so it caused a crack in the pipe or the valve. Once the valve was cut out the new rubber valve was easily placed and the clamps tightened for a secure fit. The rubber offered more flexibility to deal with the pipe alignment. problem. April 20, 2016
Rated 1.0 out of 5.0 by Had 2 fail in a year. These check valves are not only a waste of money by themselves, but they've wasted money several times their value. I had one valve fail earlier this year and burn up my primary sump. The flap basically eroded away and folded in on itself. Because of how badly it failed, I decided to replace it and the valve for my back up pump with a more expensive, name-brand valve once I received the shipment of my new primary pump. I went to take off the valve for my back up pump, and lo and behold, that one had completely failed like the first one... almost burning up my other pump! No telling how much damage was done, but it still works. That's $150 these pieces of junk cost me, and almost $300. See attached image. DO NOT BUY. September 17, 2015
Rated 1.0 out of 5.0 by Cheap Product After a month of installation with use once or twice a weak the plastic pipe end broke off. August 18, 2015
Rated 5.0 out of 5.0 by Quiet and dependable I have used this brand of check valve for 15 years and love it. My sump pump runs so actively, I replace the sump pump and the check valve every 3 to 4 years for safety. This valve closes much more quietly than all the others I initially tried. Until I found this brand, we could hear the check valve clapping closed all over the house until I found this Flo Tec brand. Quiet and out of mind. February 5, 2016
Rated 4.0 out of 5.0 by Check all the ones in the box before you purchase or you will be disappointed I'm on my second one of these and thought it best to share my recommendations. Firstly, the sump pump system I inherited did not have a check valve installed. So when it got rainy the sump pump would cycle constantly. Click, whoosh, click, whoosh, gurgle, click etc. Water would go up, water would come back down. I think every cycle it was lucky to get a cup full out the end of the pipe before the float fell turning off the pump and the water drained back out. Anyway, I installed one of these and it did the job perfectly for all of two days. I removed it to find that the plastic flapper had fallen through and was not flapping or sealing any more. For reference the height I was throwing water up was only 8 feet. I popped the flapper back through and noticed something very interesting. The flapper was off center. So over the short period of time I had it installed the water hammering back against it was enough to pop it through as it was not properly supported. I went back to my local Home Depot and took a look at the dozen they had left on the shelf. Of the dozen there was only one where the flapper was lined up properly. Needless to say I bought that one and I haven't had a failure yet. I can only assume this lack of alignment is a bored employee on the production line just throwing these through and there is no QC inspection. So, if you are heading out to buy one make sure you look through the entire box. You only have to look at a couple and you will see what I saw. I've also uploaded a picture of the bad one so you can see what to look for. December 24, 2013
Rated 1.0 out of 5.0 by Does not fit 1.5 Inch pipe! Claims to fit both 1/25 and 1/5 inch pipe. It does NOT! Does come close to fitting 1.5. Don't buy September 12, 2015
Rated 4.0 out of 5.0 by Good valve, just don't trust the label. Been using these valves in my house and at friends' houses as well. It works. Have not experienced problems like others have mentioned, and some of these have been in service for years with a lift of about 8 feet. The last one I used, though turned out to be labeled backwards. The flapper opens in the opposite direction to the marked flow. Just check the flapper with a broom handle before you install to avoid the headache. June 28, 2015
Rated 5.0 out of 5.0 by great product it was a perfect fit. for our new sump pump., my husband installed it in no time. July 28, 2015
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