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🔇 See the flow, hear the silence — PumpSpy keeps your sump pump smart and quiet.
The PumpSpy Silent Check Valve Model CV-150 is a 1-1/2" submersible valve featuring a spring-loaded flapper that eliminates water hammer noise. Its clear ABS body provides visual confirmation of water flow, while included stainless steel clamps and Buna-N couplings ensure quick, secure installation on standard pipes. Designed to prevent backflow, it extends sump pump life and enhances system reliability, making it a top-rated choice for quiet, efficient sump pump operation.
| ASIN | B091V15RHZ |
| Best Sellers Rank | #9,467 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Check Valves |
| Brand | PumpSpy |
| Brand Name | PumpSpy |
| Color | Clear |
| Customer Reviews | 4.7 out of 5 stars 1,950 Reviews |
| Global Trade Identification Number | 00850004841143 |
| Included Components | Silent Check Valve |
| Item Dimensions L x W x H | 8.5"L x 3"W x 3"H |
| Item Weight | 0.8 Pounds |
| Manufacturer | Raybend |
| Manufacturer Part Number | 93100-01 |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |
| Model Number | CV-150 |
| Power Source | No Power Source |
| Product Dimensions | 8.5"L x 3"W x 3"H |
| Product Style | Submersible |
| Specific Uses For Product | Basement sump pump systems |
| Style | Submersible |
W**E
Value product easy install
Easy quick install valve works like a charm and silent. Competitive pricing quick shipping appears to be quality product too early to rate durability good vendor would definitely repurchase if needed.
J**R
Very good!
I installed these on my two sump pumps and immediately noticed a difference! No more thumping and gurgling. These valves are super easy to install, are whisper quiet and perform flawlessly! Being able to actually see the valve operate is also a big plus! Very pleased with this purchase and would highly recommend!
D**!
Quite Quiet
This thing works so well I had to double-check it was actually on. It’s impressively quiet—like ninja-level quiet. If it were any quieter, I’d be wondering whether it was powered by thoughts and prayers instead of actual engineering. Build quality is solid and feels made to last, with a secure fit and no leaks. The clear housing is great too—it lets you peek inside like you’re inspecting a tiny science experiment, except everything is working exactly as it should (a rare joy). Easy to install, whisper-silent in operation, and rock-solid performance. Honestly, the loudest thing about this item is me telling other people how good it is. Highly recommend.
E**Z
Worth it's weight in gold.
Very quiet. Ez installation. Works great!
J**S
Longevity of the clear plastic.
I had ZERO issues installing it. Fit great. And it cycles great, too. The sump pump runs less, at the times it is needed. And so far, no leaking back past that rubber flapper check valve, which is critical. My only concern is its longevity. It’s clear plastic, glued together. In all my decades in engineering, that’s can be a weakest link. So that’s why I rated this 4 instead of 5.
M**N
PumpSpy Silent Check Valve
This "silent" check valve is really SILENT! For years I have endured the big thud bang sound at the end of a sump pump cycle. For the first time when my sump pump went off this time, there was no sound at all! One other thing, this silent check valve was extremely easy to install. Lastly, the price was excellent. I highly recommend this silent check valve.
V**M
Easy to install, works like a charm!
I recently had to replace a 20 year old sump pump and I initially made the mistake of not replacing the also 20 year old check valve. I went ahead and ordered this relatively inexpensive part. Installation was super easy. No need to worry about screwing this on a threaded PVC piece, I just slipped the rubber ends on and tightened the metal bands using a flathead and it was nice and snug. Once I turned on the new sump pump, it worked like a charm and super seamless! No leaks and it was really quiet too! I love that I can also visibly see the little stopper that’s inside. Save yourself the labor costs getting a plumber to install, you can do it yourself with YouTube and some good ol’ fashioned manual labor.
F**D
QUIET!
Received today, installed today, QUIET as can be. Glad I got two.
S**A
Great product!
Love the see through housing, easy installation and it's of course very quiet. Game changer...
S**E
A great product
Does at it should. Totally silent and zero leaks. A must have
A**R
Silent check valve
This silent check valve did exactly as advertised. Totally eliminated the bouncy ball noise and thumping noises produced by my other valve. Installed easily. Great product.
M**.
Reliable, quiet check valve
Rare device that does exactly what the name suggests. Quiet check valve action, still reliable 3 months later. Time will tell how it holds up but my initial impression is very positive
C**E
AMAZING PRODUCT
OMG this is the best thing since sliced bread!!! We had the noisiest CLUNK noise when our sump pump was going off, with rain & running non stop there was NO sleep to be had at night. Did the research on this product and OMG it is worth EVERY penny!!! We are now 'checking' sump pump area as to make sure its actually working as its SO SO quiet but so far so good. Only thing to watch for when changing it over to this new amazing SILENT CHECK VALVE make sure to have a BUCKET & TOWELS on the ready as there is A LOT of water left in upper pipe lol If you are at all 'pondering' about purchasing this....DO NOT HESITATE...purchase ASAP!!! Very happy customers in a high water table area and looking forward to a good nights sleep!!
Trustpilot
2 days ago
2 weeks ago