Walker (33977) 2-3/4" Aluminized Lap-Joint Exhaust Clamp For long life, corrosion resistance and a sharp appearance, install the Walker Mega-Clamp Band Thickness: Alz. 032 in, SS .023 in One-hand, one-wrench clamp Superior sealing capability Durable cartonized packaging Designed to form a secure seal, but allows for exhaust systems to be easily disassembled and reassembled