Replenish your stock of disposable swabs with Weld-On 14112 SuperSwab 4" Replacement Swabs. These replacement swabs snap effortlessly into the SuperSwab Applicator handle cap and are compatible with both quart and gallon containers. The swab tips deliver smooth application of cement and primer onto 4- to 8-inch-diameter piping and from 6- to 24-inch diameter piping in the gallon position.