Type B Polypak® Rod/Piston U-Seal 4.000" x 4.625" x 0.562" - AU/NBR

Marsoni

M251S

$59.46

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

Type B Polypak® Rod/Piston U-Seal 4.000" x 4.625" x 0.562" - AU/NBRProduct Details : Type B Polypak Rod Piston U Seal 4. 000" x 4. 625" x 0. 562" AU NBR Part No: 31204000 562B 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. 625" x 0. 562"

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Probably one of the best purchases I have made! The balls are far superior to any tennis ball. My dog likes to chew or bite down on the balls once she catches them and tennis balls ball apart. As to the actual thrower - the extra length on this one has helped me, I had back surgery and am not able to bend over I can reach the ball without too much difficulty. So to sum it up - best dog throwing toy I have purchase!

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Reviewed in the United States on May 9, 2026