Overlay between PACS H₂O 3₀₃ − 2₁₂ (174 μm), H₂O 2₂₁ − 1₁₀ (108.1 μm), [Oi] (63.2 μm), CO(16 − 15), OH (119 μm), and other tracers in the B2 (upper panel) and R4 (lower panel) shocked spots along the L1448 outflow. In particular, JCMT CO(3 − 2) emission (Half Power Beam Width, HPBW ~ 14′′) from Nisini et al. (2013), Spitzer [Feii] emission at 26 μm from Neufeld et al. (2009), IRAC 8 μm emission from Tobin et al. (2007), and H₂ emission at 2.12 μm from Davis & Smith (1995) are shown. In the bottom-right panel relative to L1448-B2 the EHV CO(3 − 2) emission (v ≳  − 50 km s^-1) and the HV CO(3 − 2) emission (v ≲  − 40 km s^-1) are shown in dashed and solid lines, respectively. The contours in each map are traced every 3σ, starting from a 5σ level, except for the CO(3 − 2) in L1448-B2, where the contours are traced in steps of 5σ, starting from 5σ. The crosses represent the pointing of the 25 spaxels.