We track 721 transparent filament listings from 135 brands, with prices checked every 4 hours and normalized to a true cost per kilogram. Transparent and translucent filaments let light through. PETG and PCTG usually give the clearest parts, and thin walls help. PCTG filament guide.
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The four cheapest 1kg spools by price per kg, each from a different brand.
EONO3D Clear PETG Filament 1.75mm, Transparent PETG 6kg Bundle 6x1kg Spools
TECBEARS PLA Filament Bundle, 10kg Bundle, Transparent, 1kg/Spool, 10 Packs
EONO3D Clear PETG Filament 1.75mm 5KG, Translucent 3D Printer Filament
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