... thread tee.Available size: 20*1/2M, 25*1/2M, 25*3/4"M, 32*3/4"M, 32*1"M.Good quality copper and ppr ... .4, Heat preserving and energy conserve: heat conduction index is 1/200 of the metal pipe’s, effective in heat preservation ... pipe.5, Light, high pressure resistance: the weight is just 1/8 of that of metal, it can bear 5MPa or ...