Silverline Pump Nut Spanner 52mm

Amazon

Tough, heavy-duty steel Fits most central heating circulating pumps Size: 52 mm A/F Note-Check whether your fitting is metric, imperial or AF before purchasing the relevant spanner type. The measurement of this is 52mm ‘across flats’, which is the important factor here – this isn’t a 52mm metric spanner and the jaws are not meant to be 52mm. Tough, heavy-duty steel Fits most central heating circulating pumps Size: 52mm A/F

Electrical World

Tough, heavy duty steel spanner that fits most central heating circulating pumps. Size 52mm A/F.