This John Guest Female Adapter BSP, PI451213S, is a high-quality fitting with a 3/8" x 3/8 nfpt BSP size.  The brand is trusted and well-known for producing durable and reliable products, which are evident in the unit type and quantity of 10.  It is made of high-quality materials that ensure long-lasting performance and minimal maintenance. Whether you are a professional or a DIY enthusiast, this John Guest Female Adapter BSP is a must-have for your collection.