Abstract: A paint roller adapter enabling a large diameter paint roller cover to be used on a paint roller frame having a cage configured to receive smaller paint roller covers. The adapter is generally cylindrical in shape and comprises a cylindrical internal surface having a diameter sized to fit onto the cage of the roller frame and a substantially cylindrical external surface having a diameter sized to fit within the large paint roller cover. At least one gripping member projects outward, beyond the external surface of the adapter such that, in use, the gripping member(s) press against an internal surface of the large paint roller cover. The gripping members of the adapter serve to prevent the roller cover slipping about the external surface of the adapter. A pair of such adapters thereby enables a conventional paint roller frame to be used with large diameter roller covers.

Abstract: A cartridge suitable for containing a sealant material and a matching caulking gun. The cartridge comprises an elongate hollow body defined by a peripheral wall. A coupling flange extends outwardly from at least a portion of the peripheral wall and has an abutment surface configured to enable engagement with a corresponding abutment surface of a caulking gun, to thereby connect the cartridge to the caulking gun. The abutment surface of the coupling flange faces upwardly towards the top end of the cartridge body and is disposed at an obtuse angle with respect to the peripheral wall so as to enable a downward force to be applied to the flange by a corresponding downwardly facing abutment surface of a caulking gun.