Double under-sink filter holder which includes a deluxe faucet and a connection set, a ceramic filter against nitrates Doulton Nitrate for nitrate reduction in the first stage and a chlorine reduction filter Doulton Ultracarb 0.5μm, organic and volatile compounds, pesticides, cysts, and heavy metals in the second stage.

This system is recommended in areas with increased levels of nitrates (NO3) in water up to 50mg/l.