Horizontal exhaust kit 60/100 for condensing boiler green series econ ImmergasIMMERGAS 60 100 PPR COAXIAL WALL FUME EXHAUST KIT FOR CONDENSING BOILERS Horizontal kit for fume exhaust and air intake; original of the brand and specific for IMMERGAS condensing boiler. The Kit, 1 m long. is composed by: Pcs. 1 external tube with a diameter of 100 mm. for flue gas discharge which contains an internal pipe with a diameter of 60 mm. for air intake; complete with windproof terminal; Pcs. 1 Concentric curve; Pcs. 1 Internal rosette;