Sinaí is a water purifier filter, consisting of four pieces of pottery. The first piece consists of the body and its lid. It is a pot-type piece with a small circular hole in the base and a lid, also made of ceramic. The body has the following legend: SINAÍ FUENTE DE SALUD P103867 CONRADO GRANELL. The next piece, also of painted terracotta, contains plant motifs and a castle. The third piece is the one that contains the tap where the water comes out and finally, the base, again painted with plant motifs and a castle.