Type B Polypak® Rod/Piston U-Seal 3.500" x 3.875" x 0.375" - AU/NBR

Marsoni

M251S

$42.32

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

Type B Polypak® Rod/Piston U-Seal 3.500" x 3.875" x 0.375" - AU/NBRProduct Details : Type B Polypak Rod Piston U Seal 3. 500" x 3. 875" x 0. 375" AU NBR Part No: 18703500 375B 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: 3. 500" x 3. 875" x 0. 375"

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UPDATE: Two tips broke off when unplugging them from the binding post and are now lodged in. Inexcusable and an utterly poor product. Solid connection in the binding post with no wobble or wiggle. They require some force to insert into the binding post, but once they're in they remain snug. I also tried removing and reinserting a few times and the connection remained solid. I've used other plugs in the past that have a softer tip and easily deform after one or two insertions. These do not have that issue.

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Reviewed in the United States on January 11, 2026

Verified Purchase

Dane W.

Natrona Heights, US

★★★★★ 5

Great plugs

Size: 2 Pairs / 4 pcs

These are great plugs! Worked like it should!

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Reviewed in the United States on December 26, 2024