Smelters rhymes with:
smelter's, smelter's, shelters, smelter's, swelters, altars, alters, defaulters, falters, filters, halter's, halters, psalters, quilters, realtor's, realtors, salter's, salters, saulters, shelters, smelter's, swelters, walter's, walters, walters', wolters