3414 NG 3414 H VD-3-54.14 4214NH 4412 F 30KFB4004 8668733 550123 5302471 HELICE D250MM obsolete replaced by M4Q045.EA01.G3 550163 HELICE D250MM ( brand EBMpapst) D2E133DM4723 G1G170 – AB31 – 08 - alternative is G1G170AB3101 R2D220-AB02-19 oem A6E350-AP24-06 230V 50-60HZ - obsolete alternative is A6E350AN2401 DV4114/2NR A2E300-AC47-02 RG148/1200-3633 A2D300-AD20-49 - OEM alternative is A2D300AD0202 A3G400AN0401 EMCRB2C-175/060—2580/2850mm-1 - alternative R2S175AB5601