This product is an optional accessory, compatible with: 

MK3.9MK4XL

A very high-quality Plated Copper Heat Block. Resistant to high temperatures, not easily deformed, and has excellent heat transfer capability making it ideal for high temperature printing.

A complete, high quality, all-metal v6 Volcano hotend.

High Quality MK8 Swiss Style Makerbot Heat-Break.

High Quality, Bi-Metal "All-Metal" Heat-Break.

High quality v6 Heat Break.

A High Quality Kraken Titanium All-Metal Heat Break

This product is a filament sensor for the Nextruder, compatible with: 

MK3.9MK4XL

High quality machined v6 Heat Block. Supports cartridge style thermistor.

High quality v6 Heat Break Captive PTFE Style

High quality Swiss Style MK10 All-Metal Upgrade Kit w/ 0.4mm Nozzle.

High quality v6 Titanium Alloy Heat Break for 3mm filament

A very high-quality Plated Copper Heat Block. Resistant to high temperatures, not easily deformed, and has excellent heat transfer capability making it ideal for high temperature printing.

A High Quality Kraken All-Metal Heat Break

A high quality aluminum v6 Heatsink/Cooling Block.

A very high-quality Plated Copper Heat Block. Resistant to high temperatures, not easily deformed, and has excellent heat transfer capability making it ideal for high temperature printing.