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GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)

Marsoni M251S
Sale price$46.77
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Get it in 3 business days with 1 day shipping. Friday, May 29
GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)The 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50 50 venting.
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 2183 reviews
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ANGELA PEREZ
Houston, US
★★★★★ 5
Buen producto
Size: 4.5 Wide Big Kid, Color: Navy/Blue
Recomendado, acorde a la talla y muy cómodos para correr.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
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MommaShark84
Houston, US
★★★★★ 5
Comfortable Girls shoes
Size: 3 Wide Little Kid, Color: Pink
Cute and came as expected. Daughter loved them.
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Reviewed in the United States on July 2, 2025
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Verified Purchase
Niall
Los Angeles, US
★★★★★ 5
Amazing shoes!
Size: 5 Wide Big Kid, Color: Black/Pink
Runs true to size .Fits wide feet and they look amazing. They're also splash proof.They also have amazing grip.Overall amazing shoes highly recommend.
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Reviewed in the United States on May 10, 2026
A
Verified Purchase
Addu
Birmingham, US
★★★★★ 5
Great tennis shoes!!
Size: 4.5 Big Kid, Color: Black/Orange
The best shoes my son had this past year. He loves them and has worn them continuously, not only for running and training, but also for daily use. He really likes them and says they are very comfortable.
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Reviewed in the United States on February 4, 2026
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Verified Purchase
Marissa C.
Louisville, US
★★★★★ 5
Size up
Size: 2 Big Kid, Color: Black/Pink
My daughter loves them. However they run a size small so we had to size up. She is anywhere from a 13-1 and we had to get a 2 in these. Overall great show and quality. She also just learned how to tie her shoe (7yo) and they are easy for her to tie. Style is great for running and sports too. Overall great value for the money.
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Reviewed in the United States on May 21, 2025

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