GFB BOV to AN-4 MALE FLARE VACUUM ADAPTOR.
Converts the standard brass hose barb on popular GFB BOVs to AN-4.
If you run big boost and need to connect a braided vacuum hose to your GFB BLOW OFF VALVE, this is the product you need! Constructed from stainless steel and supplied with a Viton o-ring to seal to your GFB BLOW OFF VALVE.
Suits all GFB Mach 2, Hybrid, Respons, and Deceptor Pro II blow off valves where the existing brass hose barb features a female hex in the hole (early versions of these products had a round hole and a different thread that is not compatible with this product).
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