The outer teeth of the plastic bottle can be used 14.5 or 19.5mm.
External teeth 14.5mm can be used directly
Universal full range of nozzles

Wave Shape Cone For Cartridge Caulking Spare Part Nozzle Tip For Silicon Dispenser Syrnge Accessories
20pcs/lot
suitable for Cartridge Type Caulking
Colour:blue
Material:Silica gel
Size:56mm x 13mm

Package Contents:
20 x Sealant Dispenser Accessories