# used taz 4, how to determine nozzle size

**URL:** <https://forum.lulzbot.com/t/used-taz-4-how-to-determine-nozzle-size/6627>\
**Category:** LulzBot TAZ\
**Created:** [March 30, 2019, 5:40pm UTC](https://forum.lulzbot.com/t/used-taz-4-how-to-determine-nozzle-size/6627 "2019-03-30T17:40:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sasq40](https://avatars.discourse-cdn.com/v4/letter/s/7ea924/32.png) [@sasq40](https://forum.lulzbot.com/u/sasq40)\
**Post date:** [March 30, 2019, 5:40pm UTC](https://forum.lulzbot.com/t/used-taz-4-how-to-determine-nozzle-size/6627/1 "2019-03-30T17:40:46Z")

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i got a taz 4 from a buddy with a lot of stuff(well actually 2, one is setup with dual heads)and I’m trying to figure out the nozzle size on the single head unit. I know stock is .35 but he has a few boxes with heads that are .50 (with heads in them still) is the best way to just measure the filament coming out of it there a indicator or tag somewhere?

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**Author:** ![Orias](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/orias/32/3_2.png) [@Orias](https://forum.lulzbot.com/u/Orias)\
**Post date:** [April 3, 2019, 7:29pm UTC](https://forum.lulzbot.com/t/used-taz-4-how-to-determine-nozzle-size/6627/2 "2019-04-03T19:29:30Z")

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The TAZ 4 used the Budaschnozzle hot end with the nozzle diameter engraved on the side of the hot end nozzle (just visible under the heater block):

![](https://ohai.lulzbot.com/media/uploads/IMG_1508_1.JPG)