(Easy to clean with a flexible neck) The neck rotation angle can be freely adjusted by 45°. Water is delivered to a wide range of sink for convenient cleaning. Water saving rate: Shower water spout: 50% water saving rate; Straight water spout: 40% *Compared to conventional manufacturers rectifier (PM280); Total length is about 2.3 inches (5.8 cm) so it wont get in the way when filling water into tall pots and kettles. (Compatible with both external and inner screws) Kitchen shower screw diameter: M22 x 1.25 (outer screw) with adapter that can also be connected to M24 x 1 (inner screw).