This is a Sun (Snap On / John Beam) replacement Auxiliary Hose for the Main sample hose and is used when emissions (smog) testing dual exhaust vehicles. This high quality emissions sample hose is manufactured here in the United States and is Bar 97 approved. When you buy this product from Emissions Depot, you are guarrenteed the highest quality Bar 97 approved (Made in USA) product.
Size: 3/16" I.D. X 3/8" O.D.