Drain hose for submersible pumps for optimal drainage of ponds, swimming pools, etc. Perfectly suitable for clear and slightly dirty water. Extendable by connecting to another drain hose. Connection pieces for pumps with internal thread of 30.93 mm (1"), external thread of 33.25 mm (1"), internal thread of 39.59 mm (1 1/4"), and external thread of 41.91 mm (1 1/4").