Brand: Billet Specialties Manufacturer's Part Number: 15500-905 Part Type: Air Filter Assembly Spacers Product Line: Billet Specialties Air Cleaner Spacers Automotive Fittings Part Number: BSP-15500-905 UPC: 800770101798 Fits Carburetor Neck Diameter: 5 1/8 in. Air Cleaner Spacer Height (in.): 2.50 Air Cleaner Spacer Material: Aluminum Air Cleaner Spacer Color: Polished Quantity: Sold individually. Notes: Designed to work with Billet Specialties dual quad and triangle air cleaners only. Description: Need extra clearance for your air cleaner? Billet Specialties air cleaner spacers are designed to fit between your carburetor neck flange and the air filter assembly. They are manufactured from high-quality billet aluminum and feature a polished finish to keep your engine compartment looking good. The Billet Specialties air cleaner spacers are 2.5 in. tall and fit carburetors with a 5 1/8 in. diameter inlet neck.