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NOS Tube Nut and Sleeves
The NOS AN Tube Nuts & Sleeves are available in anodized lightweight aluminum construction in a variety of sizes to suit your application and custom hard tube plumbing situation. Blue for Nitrous and Red for fuel options
Not all nitrous companies use 37° "AN" Fittings in their nitrous kits. To avoid potential leaks, never mix 37° "AN" and 45° SAE fittings.