Penn Plax Smallworld Pump and Filter Starter Kit

Briefly rinse the filtration unit with warm water in order to remove carbon or zeolite dust.
Snap the media cartridge into the filter mounting bracket.
Cut air tubing to size, and insert black control valve approximately halfway between air pump and filter.
Connect the constructed filtration unit, air pump, and black control valve together via air tubing.
Place it in your aquarium, tank, fishbowl, or habitat, and mount it to a clean surface via the 2 suction cups.
Lastly, plug in the air pump, leaving a drip loop, and turn it on.