SUNLU Refill PETG Filament 1.75mm, 3D Printer Filament, Suitable for Bambu Lab and SUNLU Reusable Spools, Dimensional Accuracy +/- 0.02 mm, 1kg per Spool, 4 Pack, Black
Condition: New
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Availability:
In Stock.
Arrives
Jul 23 – Aug 8
Color: 4000g Petg Black+black+black+black
Material Type: Filament 4KG PETG
Features
- Read Before Your Buying: SUNLU PETG Refill filament can not be used directly. It needs to be installed on an empty reusable spool from SUNLU and Bambu Lab before use
- PETG Refill Filament: SUNLU Refill PETG 3D Printer Filament combines the advantages of both PETG and ABS 3D printer filament, High Toughness and Easy to use
- Superior Compatibility: PETG Filament refill is fully compatible with reusable spools of SUNLU filament and Bambu Lab filament. You can also print your own spool for seamless use with most 3D printers
- Enhanced Toughness: Known for its toughness, PETG outperforms many other filaments in durability, creating sturdy and resilient items that can withstand stress and use
- Economy Pack: Same quality, less cost. If you have reusable spools from SUNLU or Bambu filament, this PETG filament refill will drastically cut down the cost of your printing projects
- High Impact Strength: With its high impact resistance, PETG is suitable for printing parts that need to endure bumps and drops, ensuring long-lasting performance without cracks or breaks
- Smooth Printing: SUNLU PETG filament is specially engineered to reduce stringiness and eliminate clogging, ensuring a smooth and consistent print every time
- PETG Recommend Settings: We recommend printing the PETG filament at a nozzle temperature of 240-260C, bed temperature of 60-70C, printing speed of 50-200mm/s
- Vacuum Packaging: SUNLU 3D Printer Filaments are sealed in airtight vacuum packaging which ensures that they remain moisture-free and preserve their quality from the factory to your 3D printer
- Full Ecosystem Support: SUNLU offers a complete 3D printing ecosystem including 3d filaments, 3d filament dryers, 3d printer resins and post-processing tools, all seamlessly compatible for scalable solutions
Brand: SUNLU
Material: Filament 4KG PETG
Color: 4000g Petg Black+black+black+black
Item Weight: 4 Kilograms
Item Diameter: 1.75 Millimeters
Brand Name: SUNLU
Additional Features: Refill system for reduced waste and cost
Manufacturer Part Number: SLUK-PETG-BK+BK+BK+BK-1KG*4-N-GMSLUS
Unit Count: 4.0 Count
Manufacturer: SUNLU
Number of Items: 4
Material Type: Filament 4KG PETG
Color: 4000g Petg Black+black+black+black
Item Weight: 4 Kilograms
Item Diameter: 1.75 Millimeters
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 23 – Aug 8
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Pla-orange+white+red+klein Blue
Material Type: Filament PLA 2KG
I’ve been using Sunlu PLA filament refills for several months, and they’ve become one of my go-to options for everyday printing. The quality is consistently excellent — the filament feeds smoothly without tangling or clogging, and the prints come out with a clean, even finish every time. I also love the eco-friendly concept of the refill spools. It cuts down on waste and saves space compared to full plastic spools. The packaging is neat, moisture-proof, and easy to store. The color quality is vibrant, layer adhesion is solid, and I rarely need to adjust print settings. For the price and quality, it’s hard to beat.
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Reviewed in the United States on October 26, 2025 by Christian
Color: Petg White+white+white+white
Material Type: Filament PETG 4KG
I use a Bambu P1S printer, but Sunlu filament is still my favorite. I’ve never had any issues with their products — the quality and consistency are excellent. Just keep in mind that if your filament sits for a while, it’s best to dry it out before use. From my experience, as long as you keep it under about 30% humidity, it performs perfectly. I love these refills, I just wish they sold an adapter for their V2 rolls.
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Reviewed in the United States on October 31, 2025 by James
Color: Beige+coffee Brown+olive Green+oak
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I have a bamboo labs P1 S and this filament works very well with it.Quality results, good color, sticks to my bed real well.
Reviewed in the United States on November 20, 2025 by Mike Adams
Color: Petg Black+black+black+black
Material Type: Filament PETG 4KG
Tight refills, works well on spool and prints well. I will definitely keep Sunlu on mu perferred list for filament
Reviewed in the United States on November 17, 2025 by Pat
Color: Black+white+red+klein Blue
Material Type: Filament PETG 4KG
Inconsistent thicknesses with weird deformations, clogging causing errors, waste of time and money. I bought several of these packs and have nothing but problems. To start, the rolls don't fit on what should be Gen 3 spools like Sunlu claims. Ive compared my spools with their Gen 3 and they are the same. This filament is almost oily or slimy in its feel and print, when it prints properly. The consistency seems to change within the spools even with proper drying techniques resulting in print anomolies. And now, the white has clogged my printer 3 times in the middle of multi hour prints requiring me to disassemble the extruder to clear the clog, and yes, I've troubleshot with the manufacturer and other filaments print without these issues after being calibrated. Unless Sunlu can do better, DO NOT PURCHASE! *Update* After trying to reach out to SUNLU, I've been left with only crickets. They are completely unresponsive and I've now had a spool basically disintegrate going through the tubes, leaving residue throughout the entire system. Never had a problem with SUNLU before but now they don't seem to care. 20 spools going in the trash now because I can't trust any of them.
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Reviewed in the United States on November 3, 2025 by Nathaniel T. Nathaniel T.
Color: Beige+coffee Brown+olive Green+oak
Material Type: Filament PETG 4KG
Picked these up thinking they would be as good as the spooled filaments but boy was I wrong. All four of the rolls I received were wound entirely too loose. I had a difficult time getting them onto the refill spools (2 Bambu spools and 2 Sunlu gen 3 spools). One of the spools opened up inside the AMS but I was able to get that roll onto another spool with my re-spooler. The other rolls have caused multiple failure to feed errors because the filament is getting caught up in the sides of the spool. Will not be buying any more refills from Sunlu.
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Reviewed in the United States on November 20, 2025 by Beachcire
Color: Pla-beige+coffee Brown+olive Green+oak
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More great filament from Sunlu. Preforms as it should. Don’t forget to get reusable spool as this one doesn’t come with them, which was my fault for not reading it correctly.
Reviewed in the United States on November 7, 2025 by Amazon Customer
Color: Petg White+white+white+white
Material Type: Filament PETG 4KG
About as good as what you get already on a spool. I'm definitely happy to find refills, though, because I have way too many empty spools laying around! My only complaint is that there's a gap on the sides after putting these on the spool that can potentially cause the filament to get pulled between the side of the spool and the rest of the filament and overload the AMS motor. Hasn't actually happened to me yet (*knock on wood*).
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Reviewed in the United States on September 24, 2025 by SteveD