This RYOBI caulk and adhesive gun is $84, down from $173 at Home Depot. It comes bundled with an 18V 2.0 Ah battery, which normally has to be bought separately, and can dispense over 200 tubes of caulk on a single charge. Deal ends September 9. Buy Now at Home Depot
Features
Cordless caulk and adhesive gun delivers up to 500 lbs. of push force Includes an 18V 2.0 Ah lithium-ion battery Dispenses over 200 10 oz. tubes of caulk on a single charge Variable speed dial controls the bead of caulk Anti-drip technology and a removable carriage for easy cleanup


