Qualex rhymes with:
complex, culex, inlex, patlex, proctorsilex, reflex, rolex, abex, albunex, alpex, ashtec's, avanex, cognex, complex, cortex, culex, dudeck's, forex, gemex, genex, ibex, immunex, index, inlex, koscheck's, micrografx, mondex, moulinex, ovex, pantex, patlex, proctorsilex, purex, quadrex, quanex, reflex, rolex, rorex, royex, semtex, simex, spinifex, timex, trizec's, uzbeks, vortex
Qualex sounds like:
quails, qualls, quayle's, quayles, quazulu's, quiles, quilici