Blazecut. Designed for auto engine fires looks perfect to put inside of a 3d printer enclosure.https://www.youtube.com/watch?v=-X9uMCbl3eoThe system requires no maintenance during its entire 5 year working life. It does not require any power supply for activation. It can be installed by anyone and thus no training is required for installation. The HFC agent discharges as a liquid, disperses in the form of a gas and leaves no residue after extinguishing. There are no clean-up costs. The HFC agent does not conduct electricity, corrode or cause thermal shock damageUnless I see a better option that is more affordable this is what I will be installing. http://ift.tt/2nQBBAO