Information on copper pipe: outer diameter: 15 mm, inner diameter: 13 mm, wall thickness: 1 mm, standards 1057 (RAL - DVGW) condition, soft in the ring (R220), length: 10 metres, this copper tube has quality mark RAL and DVGW certification. Information on spiral: outer diameter: approx. 31 cm. Inner diameter: approx. 28.5 cm pipe wall thickness: 1 mm tube type 15 x 1 mm turns. 11 turns. Tube length: 10 m. Height of the spiral: approx. 18 cm. Description: It is a spiral made of 10 m copper tube 15 x 1 mm with an outer diameter of approx. 31 cm with Gardena connection including 3/4 inch thread made of brass which can be used as a whirlpool / pool heater in a fire barrel or fire bar. The connectors are made of brass, but should be connected from the fire barrel at a distance. The spiral can be rolled out slightly so that the connections are further away from the fire. The spiral can be connected to GARDENA hose as a pool heater directly after unpacking. The water from the swimming pool should be pumped through the spiral with a pump to create a water circuit. The connections on the copper tube have a 3/4 inch thread. Thus, another connection can also be connected with a few additional connections. Connection for a pool hose is also possible. --== Other length of the pipe or more windings can be made on request ==-- == Custom production possible on request ==-- Contact us if you have any questions (+49(0)1522-9851998. ) info@diwa-gbr.de