See more products like this one:Smooth-Seal™ J Series Preformed Hose Clamps
Strapbinder® Smooth-Seal™ double wrapped, preformed clamps lock securely and require no hammering. The specially designed inside tab eliminates leak paths common with thin-wall hose.They easily lock under full tension by one lifting movement. Apply the clamps with the ST001 Strapbinder® tool and the HBJ001 adapter. These clamps are not for use with punch type tools.