Breezair/Braemar/Coolair Drain and Overflow Fitting 40mm Diameter.

Used in some older Seeley units. The overflow fitting prevents the unit filling up with water and flooding the ceiling.

Often a bleed pipe will be fed down inside the overflow assembly to ensure old water is discarded gradually and to keep fresh water coming into the evap while the pump is running.

This overflow can be found in the below models:
Braemar RPB models: RPB600, RPB700, RPB900, RPB1000, RPB1200, RPB1300, RPB1400, RPB1500, RPB1500.
Braemar RPAOR models: RPAOR320, RPAOR400, RPAOR450, RPAOR500.
Braemar RPA models: RPA4, RPA5, RPA6, RPA8, RPA9, RPA10, RPA12, RPA16, RPA19, RPA200, RPA250, RPA300, RPA350, RPA400, RPA450, RPA500, RPA600, RPA700, RPA900, RPA1000, RPA1200, RPA1300, RPA1400, RPA1500, RPA1800.
Braemar RPCQIOR models: RPCQIOR75, RPCQIOR150.
Braemar RPC models: RPC200, RPC250, RPC320, RPC400, RPC450.
Braemar RPCQ models: RPCQ200, RPCQ250, RPCQ320, RPCQ400, RPCQ450.
Braemar RPCQI models: RPCQI75, RPCQI150.
Breezair EP models: EP160, EP180, EP220, EP280, EP300, EP340, EP380, EP430, EP490, EP530.
Braemar SSC models: SSC250, SSC300, SSC350.
Braemar SVC models: SVC250, SVC320, SVC400, SVC450.
Braemar AMC models: AMC380, AMC560, AMC750, AMC1100, AMC1500.
Braemar TCL models: TCL80, TCL90, TCL105, TCL125, TCL140, TCL160.
Braemar SSA models: SSA200, SSA250, SSA300, SSA350, SSA400, SSA450.
Braemar STA models: STA200, STA300, STA350, STA400, STA450.
Braemar SVA models: SVA200, SVA300, SVA350, SVA400, SVA450.
Braemar AMA models: AMA380, AMA560, AMA750, AMA1100, AMA1500.
Coolair LPA models: LPA450, LPA600, LPA700, LPA850, LPA1000.
Coolair LPM models: LPM450, LPM600, LPM700, LPM850, LPM1000.
Coolair LPR models: LPR450, LPR600, LPR700, LPR850, LPR1000.