With expansion vessel connection: no, With automatic venting: no, With filling and draining tap: no, With pressure gauge: no, With check valve: no, With safety valve: no, With thermometer: no, With circulation pump: no, With thermal insulation: no, Connection kit for mounting two WPF 20..66 on top of each other. Consisting of 8 x M16 connecting screws, 4 x connecting sleeves and lock nuts.
