Horobin’s steel test plugs are no doubt of excellent quality and are available from 40mm up to 450mm diameter. Chemical resistant test plugs variants can be manufactured as per your order. "Double Seal" plugs can also be supplied as per your requirements and can be made to order. Horobin’s steel test plugs are fitted with thrustwashers as standard on all sizes and is zinc plated for superior corrosion resistance. All in all Horobin’s steel test plugs combines strength with economy.