The 1\" BSP tap connector is suitable for use with garden irrigation pumps or taps typically found on farms, in factories or in horticulture. Produced from Nickel Plated Brass ensures that the Pro Metal tap connector is: Strong, Durable, Scratch Resistant, Frost damage free. The connector securely attaches to the outdoor tap, and converts it to the Hozelock quick connect system. Less than 5% of outdoor taps are this size. To measure you tap please take the internal diameter of the outlet pipe to give your BSP tap size.