Accessories & Parts Description Product number Description:Origo Vac Arm MD 3m Product number: 0700003028 Description:Origo Vac Arm MD 4m Product number: 0700003029 Description:Origo Vac Arm HD 3m Product number: 0700003030 Description:Origo Vac Arm HD 4m Product number: 0700003031 Description:Origo Vac Wall Mounted Filter Product number: 0700003040 Description:Manual On/Off Switch for 3ph fans Product number: 0700003206