The wild river system with air-water massage, made of AISI 316 stainless steel. The air is drawn in the bushing through sleeves with a Venturi tube. The nozzle is adapted for installation in foil and tiled pools. Available elements include two types of connection: a ring with a 90-degree elbow , with a 21/2-inch female thread and a second ring with 45-degree elbow and a sleeve with a 21/2-inch female thread. Recommended pump capacity 22 m3/h.