NOS Siphon Tube for 15 lb and 20 lb Bottle with Hi-Flo Valve. NOS is making available replacement siphon tubes for its most popular nitrous bottles. We offer the siphon tubes for 5 lb all the way up to 20 lb bottles. These 3/8" I.D. tubes are made from 6061 aluminum and can be used on any NOS Hi-Flo or Super Hi-Flo bottle valve. This screw-on siphon tube can be used as an upgrade for an older style compression fitting tube.. NEEDED FOR INSTALLATION:_x000D_ 1. 1" Socket_x000D_ 2. In-lb torque wrench_x000D_ 3. Ft-lb torque wrench_x000D_ 4.
