This straight-through nozzle is designed for installation in the engine bay, where the direct stream of Halon will not come near the driver. This nozzle will not work with newer AFFF (foam) fire suppression systems.
SPA Design nozzles have a push-in connector designed for use with 1/4" Dekabon Tubing (Part No. 2456-.250). They will not work properly with bare aluminum tubing.