Piston Seal (CTS) 3.500" x 3.020" x 0.557" - PTFE/NYL/NBR

Marsoni

M251S

$180.61

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

Piston Seal (CTS) 3.500" x 3.020" x 0.557" - PTFE/NYL/NBRProduct Details : Piston Seal (CTS) 3. 500" x 3. 020" x 0. 557" PTFE NYL NBR Part No: CTS 03500 Product Category: Piston Seals Product Type: Piston Seal Profile: CTS No. Of Pieces: 4PCS Material(s): Teflon Nylon Nitrile Material Code: PTFE NYL NBR Temperature Range: 30F to +230F ( 22C to +110C) Pressure Range: 6500 PSI ( 448 Bar) Surface Speed: < 5 ft s (1. 5 m s) System Of Measurement: Inch Bore Diameter: 3. 500" Dimensions: 3. 500" x 3. 020" x 0.

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These work! I saw other reviews saying they didn't fit because they have a small round connector and that's what they have. Look inside your pen, I have an off brand pen and used my phone flashlight to look to see how it connected inside and it's round. It's also threaded so the product is described well and fits my no brand pen. Great price as well, I found the same ones on eBay for double the price. Very happy with this purchase and will be buying again.

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Reviewed in the United States on December 17, 2025

Verified Purchase

ERucci

Bozeman, US

★★★★★ 5

Perfect Microneedling Replacement Cartridges

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.

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Reviewed in the United States on June 4, 2026

Verified Purchase

Melinda

Draper, 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

San Leandro, 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