It is made of plastic, designed 10-way outlet control valve switch.
Air pump aquarium control air water flow valve is the best choice for fish tank and aquaculture applications.
This air valve can be used for aquarium, hatchery and aquaculture applications
Total Size: 15 x 6.5 x 2cm/5.9″ x 2.6″ x 0.8″(L*W*H)
Outlet Dia: 5.5mm/0.2″
Inlet Dia: 8mm/0.3″