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NOS 15lb. and 20 lb. Bottle Super Hi-Flow Valve Assembly with Siphon Tube and Blue Gauge


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$106.00   Suggested Retail
$94.95   Your Price
Estimated shipping date: 12/18/2020
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NOS now offers Super Hi-Flo bottle valve assemblies with siphon tube and nitrous pressure gauge already installed. This gives you a great way to upgrade to the highest flowing valve and tube NOS has to offer. Key bottle valve features include a 1/8"NPT gauge port, 1/4"NPT accessory port, large internal and outlet ports, along with an O-ring seal. Our 3/8" id screw-on siphon tube is made from 6061 aluminum can be used as an upgrade for an older style compression fitting tube. Lastly, included with our assemblies is either blue or black face 1-1/2" nitrous gauge with easy-to-see color graduations and a white pointer. These gauges have a stainless steel case with brass internals.


  • Super Hi-Flow assembly features siphon tube and nitrous pressure gauge already installed
  • Great way to update a bottle to the best flowing valve NOS offers
  • Valve has large internal ports for superior flow and an O-ring bottle seal
  • Siphon tube is made from 6061 aluminum and 3/8” I.D. for maximum flow
  • 1-1/2” diameter nitrous pressure gauge features stainless steel and brass construction providing accurate pressure measurement
  • Assembly is designed to Support 500+ Horsepower


Bottle Size15 lb & 20 lb
Bottle ValveSuper Hi-Flo
Diameter3/8 inch
Emission Code4
Face ColorBlue
Gauge IncludedYes
Gauge TypeNitrous Pressure
Outlet ThreadCGA #660
Product TypeBottle Valve Assembly
Siphon Tube IncludedYes
Supported Horsepower500+
Torque Value100 ft-lb
Tube Length22-7/8 inch
Tube MaterialAluminum
Part Number16340ANOS

Service Parts



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

Valve to Bottle Torque = 100 ft-lb
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