A
Anonymous
Apr 09, 2026
Rating: 5/5
Perfect for V6 clones
Fits my generic hotends without any issues. Highly recommend for maintenance.
Description
M8 Airtight Test Nozzle for Sealed Chamber Vacuum Testing with Airtight Threaded Screw
Reviews
Attributes
| Brand | - |
| Category | 3D Printing Accessories / Hot End and Nozzle |
| Origin | - |
| Thread Specification | M8 x 1.25mm |
| Material | Hardened Steel |
| Compatibility | Standard V6 Hotend Blocks |
| Max Pressure Rating | 10 Bar |
| Max Vacuum Rating | -0.8 Bar |
| Item Weight | 15 grams |
| Surface Finish | Black Oxide Coated |
| Package Contents | 1x Leak Test Nozzle, 1x O-ring |
| Country of Origin | China |
| Warranty Period | 1 Year Limited |
5 reviews
A
Anonymous
Apr 06, 2026
Rating: 5/5
Essential for troubleshooting
Saved me hours of guessing. Found a leak in my heat break immediately.
A
Anonymous
Mar 06, 2026
Rating: 5/5
Great quality steel
Feels very durable. Much better than printing a plug to test leaks.
A
Anonymous
Mar 01, 2026
Rating: 4/5
Works well but tight fit
Does the job perfectly. Threads were a bit stiff at first but loosened up.
A
Anonymous
Feb 20, 2026
Rating: 3/5
Good but needs adapter
Works great but didn't fit my specific proprietary block without an adapter.
5 FAQ
Q: Will this fit a Mosquito hotend?
A: It fits standard M8 threads. Please check your specific heater block threading.
Q: Is an O-ring included?
A: Yes, a replacement O-ring is included in the package.
Q: What pressure should I use for testing?
A: We recommend starting at 2-3 Bar for safety and effectiveness.
Q: Does this work with E3D V6?
A: Yes, it is designed for standard M8 threaded heater blocks like the V6.
Q: Can I use this while the hotend is hot?
A: No, this is for cold testing only. Do not heat the block with this installed.
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