Raceworks Metric M18X1.5 Male to 5/8" Hose Barb 90 Degree Fitting Raceworks Metric Male to Hose Barb Fitting. Includes crush washer for tight seal. Raceworks Fittings are designed to withstand the most extreme performance applications, while looking simple and professional in any engine bay. All Raceworks fittings... MSRP: Was: Now: $38.99 Add to Cart