Round shape, 1.25inch long with 39mm diameter. It is a high quality carborundum airstone releasing very fine bubbles. Th e volume and pressure output of the air pump will detremine how large an area of stone release the bubbles
small suction cups, comes 2 in a blister pack which are used in the aquariums to hold the air lines firmly. Diameter of the suction cup is around 2cm. It is transparent in color.
clear pastic u joints of 8mm diameter outside for a aquarium with wet or dry overflow boxes. Can be used as a replacement plumbing for an aquarium. It transports water to overlow boxes sumps and filters.
controllable air valve which is made up of plastic which can be used as a extending air outletsby connection them together.
elbow joint of diameter 8mm outside. Used to connect it with sumps or filters.