G. HJUKSTROM's Threaded Collar for WT250XL Caulking Gun (SKU WT250XL07) enhances longevity and performance of the WT250XL gun by replacing worn or damaged collars without needing to replace the entire tool. It helps maintain compression in the nozzle assembly, ensuring clean bead formation and reducing waste caused by dripping or loose parts. Ideal for professional contractors or maintenance crews, this accessory supports continuous work in demanding sealant or adhesive environments. When used properly, the collar contributes to smoother starts and stops, less mess, and better control with the WT250XL tool.