{"product_id":"sunlu-petg-filament-refill-1-75mm-4kg-matte-black-high-speed-petg","title":"SUNLU PETG Filament Refill 1.75mm 4KG Matte Black - High Speed PETG","description":"\u003cp\u003eIn this review the SUNLU PETG Filament Refill 1.75mm 4KG is examined for makers and small workshops that want high-speed, durable prints without the waste of spooled filament. The bottom line: this refill set is best for users who already own compatible reusable spools like the SUNLU 2025 or Bambu Lab spool and value \u003cstrong\u003ehigh impact strength\u003c\/strong\u003e and fast print speeds. For those seeking a matte black PETG that balances ease of use and toughness, it delivers consistent print quality and a good matte finish.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Compatibility:\u003c\/strong\u003e Works with SUNLU 2025 new spool, Bambu Lab spool and many FDM printers including AMS and AMS Lite, making it easy to integrate into existing setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable Spool Design:\u003c\/strong\u003e The refill format removes the need for traditional spools, cutting plastic waste while still fitting into compatible reusable spools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Speed Printing:\u003c\/strong\u003e Optimized for rapid printing with recommended ranges up to 600mm\/s when paired with appropriate nozzle temperatures for fast prototyping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Toughness:\u003c\/strong\u003e PETG combines PLA-like ease of use with ABS-like durability, producing parts that resist impacts and handle stress better than many filaments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Installation Marks:\u003c\/strong\u003e Reusable spools are marked to align and snap into place, making installation straightforward for beginners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis product is aimed at hobbyists, makers, and small production users who already own compatible reusable spools such as the SUNLU 2025 or Bambu Lab spool and need a robust matte black PETG for functional parts, prototypes, or quick turnaround jobs. It is also a good fit for those who prioritize reducing waste and want the convenience of refill rolls.\u003c\/p\u003e\n\u003cp\u003eUsers who should look elsewhere include people with the older sunlu 2rd detachable spool or those who require pre-spooled filament for printers that do not accept refill rolls; the listing explicitly notes incompatibility with that specific detachable spool. Also, if glossy finishes are required, another filament may be a better match than this matte black PETG.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStrong, durable prints with high impact resistance suitable for functional parts.\u003c\/li\u003e\n\u003cli\u003eFast melting and smooth flow enable higher print speeds when temperatures are adjusted accordingly.\u003c\/li\u003e\n\u003cli\u003eMatte black color gives consistent color quality and a professional finish.\u003c\/li\u003e\n\u003cli\u003eRefill format reduces plastic waste and supports reusable spools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot compatible with the sunlu 2rd detachable spool, so buyers must confirm spool type before purchase.\u003c\/li\u003e\n\u003cli\u003eSome customers report mixed spool winding or fit issues with nonstandard spools, so setup may require attention.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePETG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e1.75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Weight\u003c\/td\u003e\n\u003ctd\u003e4KG (4 rolls of 1KG each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eMatte Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Spools\u003c\/td\u003e\n\u003ctd\u003eSUNLU 2025 new spool, Bambu Lab spool, most FDM printers, AMS, AMS Lite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot Compatible\u003c\/td\u003e\n\u003ctd\u003esunlu 2rd detachable spool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Bed Temp\u003c\/td\u003e\n\u003ctd\u003e70-80C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe SUNLU PETG Filament Refill 1.75mm 4KG is a solid choice for makers who need a durable, matte black PETG and already use compatible reusable spools. It delivers reliable print quality, high impact strength and the ability to print at much faster speeds when you tune nozzle temperatures to the recommended ranges, offering good value while cutting down on spool waste.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this compatible with my Bambu Lab spool?\u003c\/strong\u003e\u003cbr\u003eYes, the refill is explicitly compatible with Bambu Lab spool and SUNLU 2025 new spool, but confirm your spool model before buying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat print temperatures are recommended?\u003c\/strong\u003e\u003cbr\u003eRecommended settings vary by speed: 205-215C for 50-100mm\/s, 240-250C for 100-300mm\/s, and 260-270C for 300-600mm\/s; bed temp 70-80C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this reduce plastic waste?\u003c\/strong\u003e\u003cbr\u003eYes, the refill format is designed for reusable spools to reduce plastic waste compared with traditional spooled filament.\u003c\/p\u003e","brand":"SUNLU","offers":[{"title":"Default Title","offer_id":48679712981211,"sku":"B0FCDZKLRD","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/610POsJfh3L._AC_SL1500.jpg?v=1778700348","url":"https:\/\/gearmusthave.com\/products\/sunlu-petg-filament-refill-1-75mm-4kg-matte-black-high-speed-petg","provider":"GearMustHave","version":"1.0","type":"link"}