Cylindrical shape, 1inch long with 12mm diameter. It is a high quality 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
elbow joint of diameter 12mm outside. Used to connect it with sumps or filters.
manufactured with plastic, has a structure of cross which will allow to have 2 outputs of the air line with one input and one can control the air pressure with it.
clear pastic u joints of 12mm 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.
elbow joint of diameter 16mm outside. Used to connect it with sumps or filters.