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NOS Super Hi-Flo Bottle Valve Assembly w/ Siphon Tube and Black Gauge

Fits NOS 12 lbs. Carbon Fiber Bottle


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NOS now offers Super Hi-Flo bottle valve assemblies w/ the siphon tube and pressure gauge for 12 lbs. carbon fiber bottles. This is a great way to upgrade to the highest flowing valve and tube NOS has to offer. Key bottle valve features include 1/8" NPT gauge port, 1/4" NPT accessory port, and large internal and outlet ports, along with an O-ring seal. The 3/8" ID screw-on siphon tube is made from 6061 aluminum and can be used as an upgrade for an older style compression siphon tube. Each gauge assembly includes a black or blue 1-1/2" nitrous gauge with easy-to-see color graduations and a white pointer. These gauges are made with a stainless steel case with brass internal parts.


  • Fits NOS 12 lbs. Carbon Fiber Nitrous bottles
  • 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 Size12 lb CF
Bottle ValveSuper Hi-Flo
Diameter3/8 inch
Emission Code4
Face ColorBlack
Gauge IncludedYes
Gauge TypeNitrous Pressure
Outlet ThreadCGA #660
Product TypeBottle Valve Assembly
Siphon Tube IncludedYes
Supported Horsepower500+
Torque Value100 ft-lb
Tube Length15-1/8 inch
Tube MaterialAluminum
Part Number16341ABNOS

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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