


Solid Contoured Backup Ring 9.000" x 9.500" x 0.117" - Nitrile
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Solid Contoured Backup Ring 9.000" x 9.500" x 0.117" - NitrileProduct Details : Solid Contoured Backup Ring 9. 000" x 9. 500" x 0. 117" Nitrile Part No: 8 447 N90 Product Category: O Rings Product Type: Solid Contoured Backup Ring Series: 8 XXX Dash No.: 447 Material(s): Nitrile Material Code: NBR Durometer: 90 Temperature Range: 40F to +250F ( 40C to +121C) System Of Measurement: Inch Dimensions: 9. 000" x 9. 500" x 0. 117" Nominal I. D. (d) : 9. 000" Nominal O. D. (D) : 9. 500" Nominal Width (W): 0. 250" R: 0.
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Your Solid Contoured Backup Ring 9.000" x 9.500" x 0.117" - Nitrile orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
Works like a charm!
Color: Brown
Works like a charm. My puppy was crying and would not stop -as soon as I put batteries in and turned it on -my puppy went right to sleep and slept all night. I’d say that’s 5 stars.
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Perfect for puppies!!
Color: Brown
I have boughtv3 of these! I bought one for each of my puppies. They still have them and sleep with them. My oldest dog is a rottweiler and is 4 now, she has kept her heartbeat puppy in almost perfect condition.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Worth the money!
Color: Brown
If your puppy has a hard time sleeping- just get it! Our puppy loves it and sleeps with it every night! I couldn’t believe the difference it made. He sleeps through most of the night now and only wakes up to potty!
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Cute, unrealistically loud, and quickly outgrown
Color: Brown-D
This puppy is super cute. The heartbeat sound is louder than it needs to be. My puppy (8-11 weeks) doesn't seem to find it comforting. The cactus toys are cute but are destroyed easily. The rope toys in varying sizes are holding up well, but we will have to remove half of them as they are becoming a choking hazard size as our puppy grows. We've only had this a couple of weeks, and she's already outgrown most of what is in this set.
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Reviewed in the United States on February 14, 2026
★★★★★ 3
Doggy tedybear
Color: Brown
Cute. My pup likes it
But not sure if the heartbeat helps calm her or not
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Reviewed in the United States on March 22, 2026