... 2.Easy installation, Endurable 3.Light weight,reasonable price Black Pipe Fittings---Reducing Tee following advantage 1.Economic, Nontoxic, Recyclable, Environment-friendly2 ... with all samples,Hydraulic test, no leak.3.Light weight, High strength, High flow capability, Easy installation, Endurable size:Φ15 Φ 20 Φ25 ...