This product listing features a threaded-hose barb adaptor designed for female BSP threads, specifically crafted for compatibility with water pumps and filters. Constructed from durable polypropylene, this item is resilient to workplace impacts. The female thread includes a screw-tight collar, facilitating easy installation in confined or challenging spaces. The specified barb size corresponds to the internal diameter of the pipe it accommodates, while the thread size is noted in BSP, with the reminder that it is not measured across the thread. Widely used with dirty water pumps, this fitting is particularly suitable for layflat hoses. We provide this item in a selection of four different sizes to meet various needs.