Skirting board plug connection for valve compact radiator (two pipe system) with 1/2“ socket thread or 3/4“ male thread. Consisting of two lockable telescopic corner compression adapters made of nickel-plated brass, height and depth adjustable, with two self-sealing connection nipples 1/2“ x 3/4“, two cone parts, supply and return connection each with soldered copper elbows 12 mm in diameter.