Edelbrock triple chrome-plated round air cleaners work with all popular 5-1/8" diameter carburetors (Performer Series, Thunder Series AVS, Holley, Thermo-Quad, Quadrajet and Carter AFB). The 10" and 14" models have knock-outs in the air cleaner base and include an adapter for crankcase ventilation. #1208, #1209 and #1221 fit all Edelbrock carburetors. Heights of air cleaners are in parentheses, measured from the gasket flange to the top of the supplied retaining nut. Dimensions are accurate within 1/8". Edelbrock Signature Series Black Air Cleaner 1203 Round - w/5.125 Air Horn - 10 in. Diameter w/2 in. Element - Not For Sale Or Use On Pollution Controlled VehiclesStamped From 18-Gauge SteelBlack Powder CoatedHigh-Quality FinishGreat LooksWorks With All 5.125 in. CarbsBase Knock-Outs For Use w/Crankcase VentilationAdapter For Crankcase Ventilation IncludedPit Stop USA offers Edelbrock Signature Series Black Air Cleaner 1203 at low everyday prices. Be sure to check out all of the products from Edelbrock including Edelbrock Fuel System and Intake Parts and Accessories, Edelbrock Air Cleaners, Edelbrock Air Cleaner Bases and Lids.