The Corsair Model 560 & PS. has been sold. The Corsair II Model 561 & matching ps model 961 is still available with filters 2.4, 1.8, 0.5, 0.25 . This unit was serviced by Ten.Tec in 2003 and in mint condition. Have shipping box and original manuals. Asking $800.00 plus shipping & ins. Contact K8don @ 73sk at sssnet.com