NCO2-GLASSSET-16/21MM  Outlet and inlet glass filter pipe set 16/21mm Characteristic: - high-quality colorless glass makes the tubes practically invisible in the aquarium. Glass inlet and outlet included. - the set fits all filters where hoses with a diameter of 16 / 21mm are used. We especially recommend it for the AQUA NOVA NCF series filters. - a product protected with sponges - safe transport.   download download download