The 640/650 and 540/550 Enclosure Series are semi-frameless by-pass enclosures. These by-pass enclosures incorporate true luxury and European styling. These units are created with a thicker gauge aluminum style, rounded header, brackets and knobs. The rounded towel bar compliments the rounded feel of all the extrusions. These finely crafted units have a wonderfully contemporary look. These units are fully by-passable and have an easy clean curb for low maintenance. Our sliding enclosures are available in three stock finishes; Chrome, Brushed Nickel and Oil Rubbed Bronze.