As shown below, these adapters are included with all Radium Engineering fuel pulse dampers and fuel pressure regulators as standard. They are black zinc-plated with 10-32 threads that adapt to 3/16" (5mm) barb.
NOTE: Many different diameter vacuum hoses can be used, including: 5/32" (4mm), 3/16" (5mm), and 7/32" (6mm).
NOTE: Many different diameter vacuum hoses can be used, including: 5/32" (4mm), 3/16" (5mm), and 7/32" (6mm).