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Single-spool filament, under 1 kg, new, rated 4.5 stars and up, ranked by £/kg

Every listing we track on Amazon UK that matches all of these filters, ranked by £/kg. Remove a filter with its "All" chip to widen the list.

28 listings tracked, 11 on offer right now.

Product	Material	Weight	Rating	Price	Per kg	Deal
GEEETECH Filament 1.75mm, 3D Printer Filament, Filament 3D Printing Materials	TPU	0.5 kg	★★★★½ 4.5 out of 5 (63 Amazon ratings)	£8.19	£16.38	18% below
extrudr® Biofusion 3D Printer Filament Diameter 1.75 mm (800 g) 'Arctic White/	—	0.8 kg	★★★★★ 5.0 out of 5 (13 Amazon ratings)	£17.12	£21.40	7% below
ERYONE TPU Filament 1.75mm, 3D Drucker Filament TPU 0.5kg 1 Spool, -0.05mm, 95	TPU	0.5 kg	★★★★½ 4.5 out of 5 (2,364 Amazon ratings)	£11.99	£23.98	—
SainSmart 101-90-164 Black Flexible TPU 3D Printing Filament, 1.75 mm, 0.8 kg,	TPU	0.8 kg	★★★★½ 4.6 out of 5 (1,835 Amazon ratings)	£21.99	£27.49	—
colorFabb PLA/PHA Standard Black 3D Print Filament,2.85mm,750g	PLA	0.75 kg	★★★★½ 4.5 out of 5 (14 Amazon ratings)	£21.02	£28.03	46% below
SainSmart Gray Flexible TPU 3D Printing Filament, 1.75 mm, 0.8 kg, Dimensional	TPU	0.8 kg	★★★★½ 4.5 out of 5 (790 Amazon ratings)	£22.99	£28.74	—
extrudr® DuraPro ASA Diameter 1.75 mm (750 g) 'Natural' - 3D Printer Filament	ASA	0.75 kg	★★★★½ 4.5 out of 5 (205 Amazon ratings)	£22.35	£29.80	—
extrudr DuraPro ASA Diameter 1.75 mm (750 g) 'Blue/Blue' - 3D Printer Filament	ASA	0.75 kg	★★★★½ 4.5 out of 5 (188 Amazon ratings)	£22.92	£30.56	—
extrudr® DuraPro ASA Diameter 1.75 mm (750 g) 'Neon Yellow/Yellow' - 3D Printe	ASA	0.75 kg	★★★★½ 4.5 out of 5 (204 Amazon ratings)	£23.06	£30.75	—
extrudr® DuraPro ASA Diameter 1.75 mm (750 g) 'Red/Red' - 3D Printer Filament	ASA	0.75 kg	★★★★½ 4.5 out of 5 (204 Amazon ratings)	£23.98	£31.97	—
extrudr® DuraPro ASA Diameter 1.75 mm (750 g) 'Neon Orange' - 3D Printer Filam	ASA	0.75 kg	★★★★½ 4.5 out of 5 (205 Amazon ratings)	£24.95	£33.27	6% below
Prusament 3D Printer Premium Filament ASA Jet Black 1.75mm - 800g Spool	ASA	0.8 kg	★★★★½ 4.6 out of 5 (29 Amazon ratings)	£29.99	£37.49	6% below
extrudr® DuraPro ASA Diameter 1.75 mm (750 g) 'Emerald Green' - 3D Printer Fil	ASA	0.75 kg	★★★★½ 4.5 out of 5 (204 Amazon ratings)	£32.30	£43.07	—
extrudr® DuraPro ASA ø1.75mm (750gr) - Anthracite - 3D Printer Filament - Made	ASA	0.75 kg	★★★★½ 4.5 out of 5 (204 Amazon ratings)	£32.46	£43.28	—
Polymaker PolyMax Tough PLA 3D Printer Filament - 1.75mm - 750G Blue	PLA	0.75 kg	★★★★★ 4.9 out of 5 (18 Amazon ratings)	£32.96	£43.95	28% below
extrudr DuraPro ASA ø1.75mm (750gr) - Black - 3D Printer Filament - Made in Au	ASA	0.75 kg	★★★★½ 4.5 out of 5 (189 Amazon ratings)	£33.16	£44.21	—
Polymaker Tough PLA 3D Printer Filament 1.75mm, 750g FDE Beige PLA Filament -	PLA+	0.75 kg	★★★★½ 4.6 out of 5 (62 Amazon ratings)	£36.06	£48.08	22% below
extrudr® TPU Medium ø1.75mm (750gr) 'Black' - 3D Printer Filament - Made in Au	TPU	0.75 kg	★★★★½ 4.5 out of 5 (40 Amazon ratings)	£37.48	£49.97	8% below
Polymaker PolyMax Tough PLA 3D Printer Filament - 1.75mm - 750G Black	PLA	0.75 kg	★★★★★ 4.8 out of 5 (137 Amazon ratings)	£45.07	£60.09	5% below
BuildTak PM70107 PolyFlex Flexible Filament, 0.75 kg Spool, 1.75 mm Diameter,	TPU	0.75 kg	★★★★½ 4.5 out of 5 (70 Amazon ratings)	£45.99	£61.32	16% below
extrudr DuraPro PC/PBT 1.75 mm 0.75 kg Black	PC	0.75 kg	★★★★½ 4.5 out of 5 (188 Amazon ratings)	£48.07	£64.09	—
Polymaker TPU Filament 1.75 Grey, 750g Shore 90A Flexible Filament 1.75mm, Car	TPU	0.75 kg	★★★★★ 4.8 out of 5 (11 Amazon ratings)	£49.21	£65.61	12% below
Polymaker Fiberon PA6-GF Glass Fiber Nylon Filament 1.75 Grey 500g, Enhanced H	Nylon	0.5 kg	★★★★½ 4.6 out of 5 (448 Amazon ratings)	£38.45	£76.90	8% below
SainSmart Small Spool, 1.75 mm, Thermoplastic Polyurethane (TPU), Flexible 3D	TPU	0.25 kg	★★★★½ 4.6 out of 5 (2,170 Amazon ratings)	£19.48	£77.92	—
SainSmart Small Spool 1.75 mm TPU Flexible 3D Filament 250 g, Dimensional Accu	TPU	0.25 kg	★★★★½ 4.6 out of 5 (2,170 Amazon ratings)	£20.48	£81.92	—
Polymaker Fiberon PA6-CF Carbon Fiber Nylon Filament 1.75 Black 500g, Enhanced	Nylon	0.5 kg	★★★★½ 4.6 out of 5 (389 Amazon ratings)	£49.10	£98.20	6% below
Dremel PLA-WHI-01 3D PLA White 0.75kg	PLA	0.75 kg	★★★★½ 4.5 out of 5 (178 Amazon ratings)	£84.74	£112.99	—
Dremel ECO-BLA-01 3D ECO-ABS Black 0.75kg	ABS	0.75 kg	★★★★½ 4.6 out of 5 (88 Amazon ratings)	£94.79	£126.39	7% below

Guides

• Bed adhesion: what actually works
  Glue sticks, hairspray, rafts, brims and expensive surfaces — an honest ranking of what fixes prints coming loose, starting with the free fix that solves most cases.
• Do you need a filament dryer?
  Wet filament is real and ruins prints, but a dedicated dryer is not the only answer. How to tell if moisture is your problem, and what to do about it.
• Filament storage: dry boxes, vacuum bags and desiccant
  Keeping filament dry is cheaper than drying it out. What actually works, what desiccant to use, and why the little sachet in the bag is already spent.
• First layer calibration, properly
  Nearly every adhesion problem and half of all print failures start in the first layer. How to set Z offset by eye, and what a good first layer actually looks like.

Best-selling Filament by year — which actually sold best, going back several years, ranked by sales position rather than opinion.