Hosetail Connector Fitting 3/4 BSP Male Thread Plastic Pond Hose Pipe Adapter

Hose tail will accept hose sizes

13mm or 1/2"     16mm or 5/8

20mm or 3/4"      25mm or 1"

BSP Reference -  Approx diameter of thread fitting
1/8"  -  9.7mm
1/4"  - 13.1mm
3/8"  - 16.6mm
1/2"  - 21mm
5/8"  - 22.9mm
3/4" -  26.4mm
7/8" -  30.2mm
1"   -  33.2mm
1 1/4" -  41.9mm
1 1/2" -  47.8mm