Reducing Tee ISO 228 A fast, reliable, and leak-proof solution for compressed air with all materials including a 10-year guarantee. Airnet Reducing Tee D20 to 1/2″ BSP Female £47.01 Ex. VAT Add to basket Airnet Reducing Tee D25 to 1/2″ bsp Female £51.66 Ex. VAT Add to basket Airnet Reducing Tee D40 To 1″ BSP Female £87.47 Ex. VAT Add to basket