Boiler: two complete high efficiency boiler (avant xl boiler) with 34mt coil. Bypass valve: bypass vb85/280. Shutdown system: total stop (tst), electronic board with photocell. Safety valve: vs 220 safety valve and midy safety valve. Accessories: cm. 120 lance, professional gun rl30, 10mt hp hose. Packaged dimensions: dim. Cm. 130x130x130 h.