Grand Rock - 3", 3.5" or 4" (I.D. to I.D.) Exhaust Coupler (Aluminized) Choose Dimensions:4" I.D. - 3.5" I.D. Convenient one-finger hold-open clip to

Convenient one-finger hold-open clip to set flow rate

last-step polish

stopping whenever it locates an active frequency

14 amber LED with amber lens item # 38946b

Grand Rock - 3", 3.5" or 4" (I.D. to I.D.) Exhaust Coupler (Aluminized) Choose Dimensions:4" I.D. - 3.5" I.D. Convenient one-finger hold-open clip toGrand Rock 3", 3. 5" or 4" (I. D. to I. D.) Exhaust Coupler (Aluminized) Grand Rock 3", 3. 5" or 4" (I. D. to I. D.) Exhaust Reducer Pipe (Aluminized) O. D.= Outside Dimension No Bell, Fits In A I. D. Pipe I. D. = Inside Dimension Belled, Slides Over A Pipe 8 inch Length Top Quality Manufacturing Rolled Steel Aluminized or Chrome Finished Sold Individually Made in America Available Sizes: 3" I. D. 3" I. D. 3. 5" I. D. 3" I. D. 3. 5" I. D. 3. 5" I. D.