Dust Hose Reducer Adapter Fitting

(W1011) 4" x 3"
(W1022) 2-1/2" x 1-1/2"
(W1023) 2-3/4" x 2-3/8"
(W1024) 3" x 2"
(W1025) 3" x 2-1/2"
(W1026) 4" x 2-1/2"
(W1027) 5" x 4"
(W1056) 4" x 4-1/2"   
(W1059) 2-1/4" x 2-1/2"
(W1066) 2-1/4" x 1-1/2"
(W1071) 2-1/2" x 1-3/4"
(W1072) 3-1/4" x 2-1/2"
(W1073) 6" x 4"