Edelbrock/Russell 660210 Blue Anodized Aluminum -10AN Flare Plug Adapter Designed to match with all Russell performance hose and hose ends 37 degree sealing angle guarantees a positive seal at maximum operating pressures Has an anodized finish Its polished finish will not fade or oxidize and lasts up to 5 times longer than aluminum and 10 times longer than cad plated steel fittings Comes in different sizes