A
Anonymous
Apr 11, 2026
Rating: 4/5
Good but tight
Hard to take off for nozzle changes, but stays secure during prints.
Description
Neptune 4 Plus/Max Silicone Sleeve for Print Head Nozzle and Heater Block, Heat-Insulating and Burn-Proof Protective Cover
Reviews
Attributes
| Brand | - |
| Category | 3D Printing Accessories / Hot End and Nozzle |
| Origin | - |
| Compatible Model | Neptune 4 Plus / Max |
| Material | High-Temperature Silicone |
| Color | Red |
| Heat Resistance | Up to 250°C |
| Weight | 10g |
| Package Contents | 1 x Hotend Sleeve |
| Installation Type | Slip-On |
| Primary Function | Thermal Insulation |
| Safety Benefit | Burn Prevention |
| Manufacturer Part | N4P-SLEEVE-01 |
5 reviews
A
Anonymous
Mar 15, 2026
Rating: 5/5
Recommended
Every Neptune owner should get this for safety and performance.
A
Anonymous
Mar 13, 2026
Rating: 5/5
Great Safety Feature
Prevents accidental burns. Fits snugly on my Neptune 4 Max.
A
Anonymous
Mar 02, 2026
Rating: 5/5
Stable Temps
Helps keep heat in the block. Good for printing ABS materials.
A
Anonymous
Jan 26, 2026
Rating: 5/5
Easy Install
Took seconds to put on. Works great for insulation.
5 FAQ
Q: Is this compatible with the Neptune 4 Pro?
A: No, this sleeve is designed specifically for the Plus and Max models due to hotend size differences.
Q: What type of silicone is used?
A: We use high-grade heat-resistant silicone suitable for 3D printer hotends.
Q: Will this melt at 240°C?
A: No, the silicone is rated for continuous use up to 250°C without degrading.
Q: What is the return policy if it doesn't fit?
A: We offer a standard 30-day return policy for unused items in original packaging.
Q: Does this interfere with the part cooling fan?
A: No, the sleeve fits around the heater block and does not obstruct airflow from the fan.
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