ECO ECO3

     ECO CSP-150  35  (14"), 1.50 , 2.0 ..,   3.9 )
     ECO CSP-153  35  (14"), 1.50 , 2.0 ..,  3.9 )
     ECO CSP-253  50  (20"), 2.50 , 3.4 ..,   6.5 )