This complete hotend kit from RepRap discount includes; nozzle, heater block, barrel/heat barrier, fined heat sink, heater cartridge, thermistor, fan, mount and more in a plastic case
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Push-In Hose Fitting - for 4mm tube, M6 Thread
These metal fittings are used for holding pneumatic (compressed air) tube. Designed for tube with a 4mm diameter made of Nylon or PU (PolyUrethane), they also work better than anything else we have found with PTFE tubing, which is very hard to hold due to its low friction. Has plastic collar - push down to release.
All prices are in Australian Dollars and include GST. Standard Postage & Handling with Australia is $12 flat rate, free for orders over $350. Express Post starts at $15