Rain bar multi function unit filter accessory inflow outflow pipe water plant fish tank 13mm 17mm

描述

Features: Multi function rain bar unit inflow outflow pipe Plastic materical, suitable for all kinds of external filter The transparent set diameter 13mm for 12/16mm water hose The black set diameter 17mm for 16/22mm water hose, with surface skimmer function Advantage: Bring air into contact with water to raise the dissolved oxygen and to promote the circulation of water It's close to the water level and can be a surface skimmer to help photosynthesis of water plants It can be used in open aquarium to build a natural and healthy aquatic plants layout by connecting hosepipes to make waterfalls