Cylindrical shape, 1.57inch long with 29mm 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
controllable air valve which is made up of plastic which can be used as a extending air outletsby connection them together.
t joint of diameter 8mm allows to connect the plumbing pvc hoses to be connected from 3 sides. Can be used for both air and water inlet or outlet.
Outlet pressure spray for the aquarium with outlet 2 sprays. With its flexibility it can be turned to any angle. Designed with a duck beak like for pressure and directional flow of the water.
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.