Type B Polypak® Rod/Piston U-Seal 5.500" x 5.875" x 0.375" - AU/NBR

Marsoni

M251S

$81.01

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

Type B Polypak® Rod/Piston U-Seal 5.500" x 5.875" x 0.375" - AU/NBRProduct Details : Type B Polypak Rod Piston U Seal 5. 500" x 5. 875" x 0. 375" AU NBR Part No: 18705500 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: 5. 500" x 5. 875" x 0. 375"

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This umbrella base does exactly what it’s supposed to—keeps the umbrella stable while still being easy to move around when needed. Once filled with water/sand, it feels solid and secure even on slightly windy days, which gives peace of mind. The built-in wheels are a standout feature. Moving the base across the patio is smooth and doesn’t require much effort. The handle placement is well thought out, making repositioning quick and hassle-free. Overall, it’s a great balance of stability and convenience. Highly recommend if you want a sturdy base without sacrificing mobility.

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Reviewed in the United States on March 31, 2026

Verified Purchase

Chiranjeev Shah

Chelsea, US

★★★★★ 5

The base that fits!

Finally, easy to put together and the right fit just before summer. It was extra windy so I put extra weight.

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Reviewed in the United States on March 23, 2026

Verified Purchase

colonel227