Summer fun is assured with these offers. Little ones and grown ups will love them! Buy Treatment plant for swimming pool Gre and enjoy your free time!. Colour: Grey. Power supply: Electric cable. General Product Safety Regulations information:. GRE. Manufacturas Gre, S.A._ Aritz Bidea nº57, Belako Inductrialdea, Apartado 69. 48100 Mungia (Bizkaia). 48100 - Mungia. gre@gre.es. https://www.lemarquier.com