Our Ideal Vacuum XtremeFreez transfer hoses are maintenance-free, durable, frost-free cryogenic transfer lines for use with liquid nitrogen, rated down to -320°F (-196°C). They are amazing, even with liquid nitrogen flowing through the hose, the outer surface remains at room temperature and is safe to touch with bare hands, reduced nitrogen consumption saves you money. Our Ideal Vacuum XtremeFreez Vacuum Jacketed Transfer Hose are the most thermally efficient transfer hose available, reducing liquid nitrogen loss during use. Cooldown losses are reduced by our lightweight inner tubing. Improved productivity and higher quality liquid with lower gas content at the point of use improves cryogenic cooling efficiency. Rapid hose cooldown reduces cooling time and speeds liquid cryogen delivery to the use point, outer surface is safe to the touch, even when used with liquid nitrogen, hazardous ice and dripping water is reduced, increasing safety.