Spring Loaded Type B Polypak® Rod/Piston U-Seal 6.750

Spring Loaded Type B Polypak® Rod/Piston U-Seal 6.750" x 7.500" x 0.625" - AU/SS

Marsoni

M251S

$176.24

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

Spring Loaded Type B Polypak® Rod/Piston U-Seal 6.750" x 7.500" x 0.625" - AU/SSProduct Details : Spring Loaded Type B Polypak Rod Piston U Seal 6. 750" x 7. 500" x 0. 625" AU SS Part No: 37506750S625B 4723 Product Category: Symmetrical seals Product Type: Rod Piston U Seal Profile: Type B Polypak Style: Spring Loaded Material(s): Polyurethane Stainless Steel Material Code: AU SS 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

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These pillows are fairly good quality, and keep their form better than what you might pick up at the end of the row at a big box store. After about a month of regular use, they've collapsed visibly from what they were on the first day, but still provide support. They are shipped flat in a container and take some time to plump up, but I didn't notice any strong odor on opening. Like most foam pillows, I expect a trip through an electric clothes dryer will probably fluff the pillows up again. I don't know what makes these "down alternative" as oppose to a regular foam-filled pillow, and there is a sharp distinction from my down pillow. Most notably, the down pillow provides much more support. There would be no mistaking one of these for a down pillow.

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Reviewed in the United States on November 12, 2023

Verified Purchase

Katherine H

Pawtucket, US

★★★★★ 1

Not firm at all

Style: Medium/Firm, Size: Queen

The pillows are listed as firm and they are not fi at all. My kids will enjoy sleeping with them, but not my husband or myself. Total disappointment!

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Reviewed in the United States on December 22, 2022

Verified Purchase

Richard F.

Boise, US

★★★★★ 5

Pillow

Color: White, Size: Standard/Queen

Very comfortable

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Reviewed in the United States on December 3, 2025

Verified Purchase

rhoffa

Cuba, US

★★★★★ 1

Awful, very soft not firm at all

Color: White, Size: Standard/Queen, Color: White, Size: Standard/Queen

Ordered the Serta Ocean Breeze Breathable Medium/Firm Bed Pillow. The listing is misleading—it shows two pillows in the photo, but only one is included for the $47.00 price. The pillow arrived vacuum-packed and was extremely flat. Despite efforts, I couldn't fluff it back to a usable thickness; the total loft was only about 4 inches. Very disappointed with the quality and presentation. Returned item.

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Reviewed in the United States on June 15, 2025