The coverlets for swimming pools we classify them according to hisapplication in:

SUMMER COVERLETS

Without ties, they place floating inside the swimming pool. His finished one is for simple court in the whole perimeter.
The measurements of these coverlets, they have to be the same that the interior glass of the swimming pool.
Optional:
Edge: of fabric of polyester plastificado the perimeter of the coverlet.
Winder: it facilitates the withdrawal, storage and retreat of the zone of bath of the floating coverlet.
Float: ended in the shape of floating pipe for the coverlet with winder placed in the face of advance, to avoid to embark water and to be able to extend more rapidly the coverlet.

WINTER COVERLETS

Provided with ties desplazables in the whole perimeter, which the points of fixing allow to place to any suitable distance.
The measurements of this type of coverlet, it is advisable that they cover as minimum 30 cm. More, that the water surface in the whole contour of the swimming pool.
Optional:
Different fixings exist, according to convenience.