CO spectral-line energy distributions of the Planck’s dusty GEMS. Blue triangles show the velocity-integrated line fluxes uncorrected for gravitational magnification, as measured in this work with EMIR on the IRAM 30-m telescope. All CO(1–0) fluxes are taken from Harrington et al. (2018, black triangles) and CO(3–2) for PLCK_G092.5+42.9 is from Harrington et al. (2016). For PLCK_G045.1+61.1, PLCK_G092.5+42.9, and PLCK_G244.8+54.9, light blue and red triangles show the SLEDs obtained for the blue and red kinematic components, respectively, for the transitions with S/N values sufficiently high to obtain a robust separation of the two components.