Accelerator Pump Discharge Nozzle 0. 018 in. Hole Size Straight Type Includes 2 GasketsInstallation Notes:Nozzle sizes . 040" and larger include a hollow nozzle screw. FeaturesIncludes 2 GasketsPit Stop USA offers Holley Accelerator Pump Discharge Nozzle - 0.018 "Hole Size Straight Type 121-118 at low everyday prices. Be sure to check out all of our products from Holley Performance Products including Holley Performance Products Pump Discharge Nozzles.