Solid Contoured Backup Ring 19.000" x 19.375" x 0.076" - Nitrile

Marsoni

M251S

$54.26

Get it in 3 business days with 1 day shipping. Friday, May 29

Solid Contoured Backup Ring 19.000" x 19.375" x 0.076" - NitrileProduct Details : Solid Contoured Backup Ring 19. 000" x 19. 375" x 0. 076" Nitrile Part No: 8 388 N90 Product Category: O Rings Product Type: Solid Contoured Backup Ring Series: 8 XXX Dash No.: 388 Material(s): Nitrile Material Code: NBR Durometer: 90 Temperature Range: 40F to +250F ( 40C to +121C) System Of Measurement: Inch Dimensions: 19. 000" x 19. 375" x 0. 076" Nominal I. D. (d) : 19. 000" Nominal O. D. (D) : 19. 375" Nominal Width (W): 0. 187"

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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These cartridges fit the Loutsbe brand Microneedle Instrument that I purchased from Amazon. After much research, I was so happy to find these as it seems there are many different types out there. It can be rather confusing finding the correct cartridges. The quality of these is excellent and they screw in perfectly. These have the treads above the little spring.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 4, 2026

Verified Purchase

Melinda

Dallas, US

★★★★★ 5

Micro needling replacements

These cartridges all came well sealed, and well aligned so when I use them, they don’t stab deeper in one spot than the other and they fat my micro needling pen.

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Reviewed in the United States on May 28, 2026

Verified Purchase

CAM

Cuba, US

★★★★★ 5

Do yourself Micro needling

Easy to use and lives up to my expectations.

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Reviewed in the United States on February 5, 2026

Verified Purchase

Lira Beautiful Spa Academy