Can we use other accessories in fittings than those used by BISK?

We always try to meet all our customers; requirements and equip our goods with the highest quality accessories but we also give our customers opportunity to replace any elements with others, commonly available on the market. Our offer also includes optional accessories identical to those which our tap fittings are equipped with, such as water-saving tap aerator, PEX flexible tap hoses, or click-clack plug.