Blue -8 to 3/4 16UNF Straight [AN Male to Male Union Adapter] Oil/Fuel AN Fitting BC-T99-RD They have blended welds and

They have blended welds and mitered corners

Hose Outside Diameter: 2

HPS 4" (102mm) x 8" Long High Temp 4-ply Aramid Reinforced Silicone Charge Air Cooler CAC Hose Coupler Hot Side Bellow meet and exceed SAEJ20 industry standards

Hose Length: 50 feet

Blue -8 to 3/4 16UNF Straight [AN Male to Male Union Adapter] Oil/Fuel AN Fitting BC-T99-RD They have blended welds andThe AN thread is a type of fitting that is used to connect flexible hoses and rigid metal tubing that supplies fluid. It gained popularity in professional racing due to the ease with which new lines could be easily customized. Its use spread to the aftermarket automotive performance field due to its ease of adaptability, upgradability, and durability.