NOTICE:After installing all components and before re leveling, please change the Z-off value to 0 before entering the leveling program, otherwise it may cause the nozzle to collide with the hot bed. Because the distance between the new nozzle and CT touch probe is different from the original distance.【Ender3 S1/Sprite Pro extruder specific】A high-temperature resistant, high flow printing hot end kit designed specifically for Sprite Pro Extruder. Adopting the same hot end design as K1, it supports high temperature printing up to 300 ℃ and a printing speed of 600mm/s. The kit includes corresponding accessories for upgrading Sprite Pro Extruder, which is easy to install and use.【High-speed Printing up to 600mm/s】The length of the melting section has increased by 50% compared to the original hot end of the Sprite Pro Extruder, reaching 28.5mm, with a maximum flow rate of 32mm ³/s, supporting a printing speed of 600mm/s. Suggest setting the printing speed to 200% or above after upgrading.【High Temperature Resistance up to 300°C】The copper-titanium alloy bimetallic heatbreak make printing temperature up to 300℃，the temperature measurement of the thermistor reaches 300℃.Making it compatible with a wide range of filaments including PLA, ABS, PETG, TPU, PP, PC, nylon, and more.【65W Ceramic Heating Block 】This kit uses the same 65W 360 ° C ceramic heating ring and heating block as K1, which can improve heating efficiency, uniform heating, and rapid heat transfer, and can reach 200 ° C in just 30 seconds.【Easy maintenance】Using universal hot end accessories as K1, it is convenient to replace accessories, reducing usage and maintenance costs. Feel free to contact us (the seller) directly through the "ask a question" feature.