Type B Polypak® Rod/Piston U-Seal 4.000" x 4.750" x 0.625" - AU/NBR

Marsoni

M251S

$81.52

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

Type B Polypak® Rod/Piston U-Seal 4.000" x 4.750" x 0.625" - AU/NBRProduct Details : Type B Polypak Rod Piston U Seal 4. 000" x 4. 750" x 0. 625" AU NBR Part No: 37504000 625B 4615 Product Category: Symmetrical Seals Product Type: Rod Piston U Seal Profile: Type B Polypak Material(s): Polyurethane Nitrile Material Code: AU NBR Temperature Range: 65F to +200F ( 54C to +93C) Pressure Range: 5000 PSI ( 345 Bar) Surface Speed: < 1. 6 ft s (0. 5 m s) System Of Measurement: Inch Dimensions: 4. 000" x 4. 750" x 0. 625"

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I use this once a week. I apply with my fingertips. (It is liquid, so a little goes a long way) After you wash your face for the night- wait a few minutes then apply this. If you don’t wait it might sting for a few minutes- so wait.. Apply your moisturizer after. My face was so soft the next day after one use. It is now a regular in my skin care routine. I do not use another active like retinol or tea tree serum the day after.. just moisturizer. Would recommend and will buy again.

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Reviewed in the United States on March 23, 2026

Verified Purchase

Crystal

Lowell, US

★★★★★ 5

Good product

This seems to be working really well. I used to use a different brand of BHA and I like this one better. I do wish they had an eye dropper version, but it’s fine.

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Reviewed in the United States on April 17, 2026

Verified Purchase

James

Charlottesville, US

★★★★★ 5

Works Perfectly

This has improved my complexion greatly. Wrinkles and fine lines are smaller. My pores have shrunken as well

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Reviewed in the United States on February 24, 2026