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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
For Your Every Summer RSVP, with Code: SUMMER15
Description
Prusa MMU3 Enclosed Conversion Kit for CORE OneIn stock, ready to ship. This conversion kit allows you to move an existing MMU3 unit from an MK4S to the Prusa CORE One or CORE One+. It includes a modified top cover with a pass through for the PTFE tube, so the printer remains fully enclosed after installation. Note: You will need to disassemble the MK4S extruder to reuse certain parts in the CORE One's extruder. Nozzle Recommendation: For optimal MMU3 performance, Prusa recommends using the

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
4.2 ★★★★★
Based on 960 reviews
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Product Reviews
★★★★★ 5
Easy to use for this old folk!
Style: EcoFetch
If you have a hard time to bend down and throw, this is perfect! It allows you to pick up the ball with little bending over. It also gives much further distance to your throws. Great quality to both the ball and wand.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Great product and fast shipping
Style: EcoFetch
Great ball launcher and ball. My dog adores it and plays with the ball even when she isn’t fetching.
Fast shipping as well!
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Different colors
Style: EcoFetch
Works well. It is nice it is a different color from all the other Chuckit it balls. Dog loves it. Just wish she would bring it back.
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Reviewed in the United States on May 6, 2026
★★★★★ 4
Value for your money
Style: EcoFetch
It's definitely different from the one I lost. It's taking me some time how to throw the ball correctly. It's a hit and miss but we are getting there. When I do get a good throw, it really wings it out there.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Well worth it
Style: EcoFetch
Works great
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Reviewed in the United States on May 20, 2026




