Round Ø 270mm main drain for swimming pools made by ASTRALPOOL. ABS grating. Standard thread. Bottom 11/2" and side 2" outlets. Fully manufactured in white ABS. Side outlet for plug to test watertightness.Bottom outlet with plug and possibility of fitting a hydrostatic valve code 00277 (see page 108) and drainagetube code 21581, (see page 108). Ø 250mm suction grille. Max. flow rate: 13 m3/h. Complies with Standards:EN 16582-1EN 16713-2