CO2 cartridge regulator valve presta or shrader

Screw threads for Shrader and Presta valves, regulates pressure from threaded CO2 cartridges.

Everybody knows that CO2 cylinders are under very high pressure.  Most people know that they shouldn't fill their bike tires up at the gas station, because of the unregulated pressure.  So why would you want to 'dump' a whole CO2 cylinder full of gas instantly into your tube/tire?
With this tiny little device, you can slowly release the pressure of any size (12, 16, 25g) threaded CO2 cartridge(not included).  The adapter can be threaded onto either a shrader (auto valve) or presta (French) tube valve.  It has O-rings to seal on both sizes. 
To Use: Close the red valve knob. On presta valves (only) unscrew the inside piece to open the valve stem. Screw the adapter onto your valve stem until it is firmly seated with the hand. Making sure the red valve is still closed, quickly and firmly screw your CO2 cartridge onto the regulator, until the end of the cartridge is pierced. Make sure your tire is still seated on the rim and slowly release some air to pre-fill the tube.  Check that the tire is still seated on the rim before releasing all the pressure and filling the tire to capacity. When you hear no more air releasing, the maximum pressure has been reached and you can now unscrew the cartridge and adapter.

Take a close look at the high quality construction of this item.  It is machined with precision and any sharp edges have been rounded and polished.  There is also a small hole drilled where the cartridge is attached, so that 'blow backs' will be prevented, in the case where a cylinder is punctured, but unscrewed without first using the contents.  This blow back hole will release any left over pressure before the cylinder is completely unscrewed, since it would otherwise become a dangerous projectile.

• Color:  silver
  
• Functions: fully adjustable air release, dual valve
  
• Material: machined Steel
  
• Size: 39x47x25mm  (1.5x1.8x1")
  
• Weight: 58 grams (1.25 oz.)
  
• Made in Taiwan with quality
• Item No. CO2-REG
  
• Suggested Retail price $12.90/each

These are brand new items.   We also sell replacement CO2 cartridges and an insulating sleeve to keep your fingers from freezing when the air is released.  The sleeve also keeps the cylinder from banging around your tool bag.

Click on pictures below for enlarged version (in new window).