Set of 2 Extra Heavy Duty stainless steel marine exhaust clamps for 4" exhaust hose. Don't confuse these with the Chinese half steel crap you see at the big box stores. These clamps are made of 100% stainless steel specifically for use in harsh marine environments. 

They are heavy duty so you can crank them down without ripping out the threads. They sell for $8.99 ea. at the big marine supply place.

I'm selling these in packs of 2 since all joints are required to be double clamped. 

15+ year Ebay seller means you buy with confidence.

Items ship the same day when possible and multiple orders are always combined to save you money.