Siphon Tube for 15 and 20 lb Bottles with Hi-Flo Valve

NOS offers replacement siphon tubes for its most popular nitrous bottles, from 5 lb up to 20 lb. These 3/8 inch I.D. tubes are made from 6061 aluminum and fit any NOS Hi-Flo or Super Hi-Flo bottle valve. The screw-on siphon tube can also be used as an upgrade for an older compression-fitting tube.

Key features

• Made From 6061 Aluminum
• Tube is 3/8" I.D. for Maximum Flow
• Can be used on NOS 15 & 20lb. Bottles with Hi-Flo Valve
• Designed to Replace Old Style Compression Fitting Siphon Tube
• Service Part for NOS Bottle Valves

Technical specifications

• Brand: NOS (Nitrous Oxide System PI)
• Manufacturer part number: 16185NOS
• Bottle capacity: 15 lb (6.8 k PI) / 20 lb (9.1 k PI)
• Bottle valve: Hi-Flo
• Outside diameter: 3/8 in (9.5 m PI)
• Length: 21-1/4 in (540 m PI)
• Material: Aluminum

Good to know

• NEEDED FOR INSTALLATION: 1. 1" Socket 2. In-lb torque wrench 3. Ft-lb torque wrench 4. Vice with aluminum jaws such as 1004ERL, found on the Holley website, or another method capable of holding the siphon tube without deformation. 5. Medium strength thread locker such as Loctite 242 or equivalent. 6. Tube/pipe/conduit bending tool with minimum 3" radius

Important: this product runs on nitrous oxide (N2 PI), a gas we do not supply and which is currently difficult to obtain. It is your responsibility to find a local supplier of gas for professionals. NOS bottles do not comply with CE standards (they do not carry the PI mark): only CE-approved bottles may be used. European manufacturers offer bottles approved to contain this gas; please check the applicable standards and verify the manufacturer's origin and compliance before purchasing. NOS fittings are not metric (AN / NPT threads depending on the part numbe PI): plan for the adapters needed for your installation. Please comply with the regulations in force in your country.