Male adaptor, threaded on one side socketed on the other, to be solvent weld or glued. Take note of the different BSP diameter (20mm) and Inner Diameter (20mm).
Special chemical glues can be used to create a solvent weld which will fuse the pip and fitting into one. These fittings can typically be used in cases where there is a female threaded component that needs to be screwed in. Should the piping or component not have male threading of its own this male adaptor fitting is exactly the fitting to use.

Atlas Copco WEDA D60N 380-400V D 50HZ - Float
Bio Filters-10 liter & +- 130 Bio Balls
Atlas Copco WEDA D50N 525-550V D 50Hz - No Float
Atlas Copco WEDA D40N 500-525V D 50Hzr - No Float
Atlas Copco WEDA D30N 525v Drainage pump
Electromote 0.25kW Three Phase Aluminium IE1 Motor Class F Insulation IP55 2-pole Flange mount
HT MCP25-160A 220v
Female coupler x female BSP 25mm
Pentax CAB200/00
Wilo STM1 200T 1.5kw 400v
Lorentz PS2-1800 C-SJ30-1 solar borehole pump
Female coupler x hose tail 32mm
KSB Etanorm 050-032-125.1 



