The Dust Extractor Hose connects to Bosch dust extractors. Suitable for: GAS 11-21, GAS 12-30F, GAS 12-50 RF, GAS 12-50 RFH, GAS 14-20 RFB, GAS 25 L SFC, GAS 50, GAS 50 M, GAS 1000 RF, GAS 1200 L Professional, PAS 10-20, PAS 11-25, PAS 11-25 F, PAS 12-50 F, PAS 1000, PAS 1000 F.