2-1/4 To 1-1/2 Adapter can be connected to all of the following: 

13025 Vacuum Hose Adapter 2-1/2"

13061 Adapter 4" x 2-1/2" Threaded 

13064 Adapter Fence 2-1/2" 

13072 Y- 4" x 4" x 2-1/2"

13075 Nozzle Tapered 2-1/2" 

13076 Nozzle 2-1/2" x 3-1/2" x 6" 

13090 Splicer 2-1/2" Hose to Hose 

13127 Cyclone Lid for 12" Pail 

13129 Cyclone Fitting Kit 2-1/2" 

13361 Mountable Adapter 2-1/2" Angled 

13362 Mountable Adapter 2-1/2" Straight 

13390 Adapter 4" x 2-1/2" 

13406 Adapter Fence 2-1/2"