Kavo Back Cap for Kavo 655,660,6000,7000,609,619 / S659C/ S459L CA$27.50 Back Cap for Kavo 6500B,6500BR,8000, M9000 (#21189) CA$29.50 Back cap for Kavo 4500B/BR (#21401) CA$27.00 Back Cap for Kavo 680 (#21449) CA$29.50 Back Cap for Kavo 605,615/ E675 (#21469) CA$29.00