Ideal Standard B3697AA Ceraplan SL Bath/Shower Mixer The Ceraplan SL collection is an innovative beautifully styled range of precision-engineered mixer fittings that is versatile enough to complement many of our porcelain ranges. For the environmentally conscious the CLICK cartridge in single lever basin and bidet fittings encourages water saving by providing a helpful reference point when using 50% of the water flow.