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SUNLU PLA Refill Filament 1.75mm, Refill PLA 3D Printer Filament Suitable for Bambu Lab Filament and SUNLU Reusable spools, Dimensional Accuracy +/- 0.02 mm, 1kg per Spool, 4 Pcs, 4 Black

  • Based on 102 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Oct 28
Order within 12 hours and 12 minutes
Available payment plans shown during checkout

Color: Pla Black+black+black+black


Material Type: Filament PLA


Features

  • 1Read Before Your Buying- SUNLU PLA Refill filament can not be used directly. It needs to be installed on an empty reusable spool from SUNLU and Bambu Lab before use.
  • 2SUNLU Refill Filament- SUNLU PLA Refill filament is reliable, versatile, and easy to use. No clogs, bubbles, or tangles, its excellent layer adhesion ensures high-quality prints every time.
  • 3Superior Compatibility- SUNLU Refill PLA 3D Printer Filament is fully compatible with reusable spools of SUNLU and Bambu Lab. You can print your own spool for seamless use with most 3D printers.
  • 4Reduce Plastic Waste-SUNLU filament refill reduces waste by reusing existing spools, minimizing empty plastic spools, offering you a high-quality printing with a lower environmental impact.
  • 5Economy Pack-Same quality PLA filament with lower cost-effectiveness. If you have reusable spools from SUNLU or Bambu Lab, this pla filament refill will drastically cut down the cost of your printing projects.
  • 6Easy To Stall- The inside of the spool is clearly marked to align and snap into place. If there is any confusion, please feel free to contact customer service or watch the instructional video.
  • 7Neatly Wound PLA Filament- SUNLU winding system guarantees tangle-free coils. Reinforced edges prevent loosening during transport, ready for use straight out of the box.
  • 8Optimized Printing Parameters- For best printing results with PLA 3D filament, we recommend settings at: 210-240C nozzle, 50-65C bed, 100-200mm/s speed.
  • 9Moisture-Proof Packaging- Sealed in a vacuum bag with built-in desiccant to prevent filament PLA brittleness by absorbing moisture and guarantee print reliability for long-term storage.
  • 10Full Ecosystem Support- SUNLU offers a complete 3D printing ecosystem: 3d filaments, 3d filament dryers, 3d printer resins and post-processing tools - all seamlessly compatible for scalable solutions.

Brand: SUNLU


Material: Filament PLA


Color: Pla Black+black+black+black


Item Weight: 4 Kilograms


Item Diameter: 1.75 Millimeters


Manufacturer: ‎SUNLU


Brand: ‎SUNLU


Item Weight: ‎8.8 pounds


Package Dimensions: ‎10.04 x 7.48 x 7.36 inches


Color: ‎Pla Black+black+black+black


Material Type: ‎Filament PLA


Number of Items: ‎4


Size: ‎1KG*4


Manufacturer Part Number: ‎SLUS-PLA-BK+BK+BK+BK-1KG*4-N


Date First Available: July 1, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great filament. No printing issues
Color: Pla Orange+yellow+green+lavender Purple Material Type: Polylactic Acid
Great value for quantity. Quick shipping
Reviewed in the United States on October 5, 2025 by Amazon Customer

  • Excellent PETG from Sunlu
Color: Petg Beige+coffee Brown+olive Green+oak Material Type: Polyethylene Terephthalate Glycol
Excellent PETG from Sunlu. Zero printing issues on the P1S. Great surface quality and strength. I specifically bought the bundle with pastel, unusual colors because I was tired of the standard RGB palette, and they are excellent. Pale green and coffee brown are my favorites. The refill rolls fit perfectly on standard Bambu Lab spools without any problems. I will definitely keep buying it and plan to try the other colors. Recommended. ... show more
Reviewed in the United States on September 1, 2025 by Anna

  • Purple is closer to a Lilac, is lighter and less saturated than product photos
Good quality but color is not well represented in their product photos. I ordered the purple to make assistive devices for a friend in her favorite color. The Sunlu PETG Purple is closer to a Lilac with a touch of blue – it's lighter and less saturated than product photos. See my review photos here, where you can see it on a calibrated grey card and a calibrated Datacolor Spyder color card. Mechanically it's top quality. Great adhesion, good strength, very little stringing. I'll buy more of their filament! Even this. It's a very nice purple, just not a bright, intense one! :) ... show more
Reviewed in the United States on August 12, 2025 by Robert M. Robert M.

  • Does not fit Old Sunlu reusable spool
Color: Petg Black+black+black+black Material Type: Polyethylene Terephthalate Glycol
Edit: Just ordered new Sunlu spool and the new design is thicker, so adding 2 more star to the review, check fourth image. Original: Does not fit Sunlu spool, literally, the refill spool is too thick to even push the two half remotely together, I can easily close them without the refill-lament but with it I can’t, even when forcing my bodyweight onto it. You can see the thickness of it when pushed into an existing spool, it has to bend outward to accommodate the refill-lament. ... show more
Reviewed in the United States on September 12, 2025 by Andy Tran Andy Tran

  • Fantastic
Color: Pla Black+white+red+klein Blue Material Type: Polylactic Acid
Amazing filament refills, Great brand, had no issues with tangles or clogs, would recommend
Reviewed in the United States on October 10, 2025 by FireLord101

  • Sunlu seems to be going down hill
Color: Petg Black+white+grey+transparent Material Type: Polyethylene Terephthalate Glycol
I like sunlu products but these spools were wound weird and get stuck so much it’s not even worth the effort and I figured I could fix them so they are used now and can’t return them! This isn’t the first batch of sunlu I’ve gotten that have issues all the way through the spool. They get stuck because they have been over lapped with filament and not wound tight ... show more
Reviewed in the United States on September 15, 2025 by Sharkky

  • Refills are the best bargain
Color: Pla Beige+coffee Brown+olive Green+oak Material Type: Polylactic Acid
Prints real smooth and neatly wound.
Reviewed in the United States on September 24, 2025 by Becky Becky

  • Poor wind and doesn't fit
Color: Pla Beige+coffee Brown+olive Green+oak Material Type: Polylactic Acid
Does not fit standard Bamboo printer reusable spool. I had to print an adapter for the spool. The adapter makes the spool too wide to stay on the spool holder and it will fall off mid-print. The filament gets caught up when taking filament from the edges against the spool almost guaranteeing that the spool will be pulled off. A complete headache. ... show more
Reviewed in the United States on September 8, 2025 by jennifer smith

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