UPC PROFLEX FERNCO CLAMP SHIELDED COUPLING Will couple anything from 4-1/8" up to 4-3/8" round. This is a 2 band shielded clamp 2-1/8 tall with a rubber inner sleeve. 4-1/4 fits perfect it is tight on 4-3/8 OD.
Please check the size of what you are coupling to make sure this will work.
Each additional clamp purchased at the same time ships for 1.00 more each.