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Ships within 48 hours · Estimated delivery Jul 2 - Jul 7
For Your Every Summer RSVP, with Code: SUMMER15
Description
Slot Box Fin X1 V4 18cm Select SM040195018Slot Box Fin X1 V4 18cm Select SM040195018 Description: The Slot Box Fin X1. V4 is a versatile wave fin engineered to fit a wide range of board setups, from Quad and Thruster to Twinzer and Single configurations. At 18 cm this fin delivers a balanced mix of drive, maneuverability and release, making it suitable for riders who switch between board layouts or tune their setup for different conditions. Constructed from highstrength composite materials,

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 357 reviews
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Product Reviews
★★★★★ 5
Buy these
Size: 20 PACK
I love ordering these
Replacement parts. These work just as good
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Reviewed in the United States on July 4, 2025
★★★★★ 5
Very great and durable option.
Style: for Saros 10R / Saros 20 / Qrevo CurvX
These parts are the perfect option when maintaining your robot vacuum. They fit the machine perfectly and are just as if not more durable than the company provided parts. Definitely recommended.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Quality at a great price
Style: for Saros 10R / Saros 20 / Qrevo CurvX
I was happy with the items, they did work great and I saved money buying them. Highly recommended.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
They do what they are supposed to do
Style: for Saros 10R / Saros 20 / Qrevo CurvX
They fit the Saros 10R perfectly and do the job they are intended to do.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
great deal on wear parts
Style: for Saros 10R / Saros 20 / Qrevo CurvX
perfect fit for my roborock saros 10r
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Reviewed in the United States on October 15, 2025




