Push-In BSP Fittings with various gaskets for additional or alternative connections to our water tanks & plastic tanks. The complete installation of these PP Tank Connection Sets - even in inaccessible places, from outside the tank - can be carried out quickly and easily by just one person using standard tools. The Push-In BSP Fittings have both male and female threads on each fitting for maximum installation flexibility. Available with external threads ½' - 2' and internal threads 3/8' - 1 ½'. The glass-fibre reinforced PP (polyethylene) is durable, physiologically safe and offers excellent, maintenance-free corrosion resistance. The patented EPDM (food-safe), NBR (diesel-resistant) or FPM (chemical-resistant) sealing diaphragm ensures a complete seal up to 4 bar combined with very good resistance. The Push in BSP Fittings can also be installed on round tank walls, please note the required minimum diameter of the water tank.