Abstract: The drip chamber comprises a first part formed with a feed pipe or liquid duct terminating in a grooved tubular piercing needle at one end of the first part, the other end of the first part terminating in a bell-shaped cover. A second part of the drip chamber is constructed by a liquid chamber having one end engaged with the bell-shaped cover and the opposite end terminating in a hose or conduit. The bell and the liquid chamber are interconnected, at their junction with each other, by interengageable clampingly interlocking components forming, when interengaged, a labyrinth packing providing a liquid tight seal at the junction. The two parts are interconnected by a snap interfit of the interlocking components.