DOWSIL Silicone Sealant Gun / Applicator Crack Filler  (1 g)

All silicone sealant gun have a single purpose: deliver a continuous bead of sealant in order to seal joints between two surfaces—for instance, gaps between window frames and jambs. The majority of the sealant guns used today are manual, meaning you squeeze a hand trigger to dispense the sealant. Powered sealant guns—the new kids on the block—are growing in popularity because all you need do is guide the tip of the gun to create a smooth, continuous bead of caulk.