6e888319___2
[0] CRITERIA [1] EFFECT OF HARD WATER [3] HEALTH CRITERION [4] JOINTING TECHNIQUES [5] CORROSION RESISTANCE [6] THERMAL STRENGTH PROPERTY AT 60 c TEMP. [7] AVAILABILITY OF FITTINGS [8] THERMAL EXPANSION [9] EFFECT OF SUB-ZERO TEMP. [10] UV RESISTANCE [11] EASE IN INSTALLATION [12] FLOW PROPERITES FOR FRICTION [2] 
EFFECT OF SOFT WATER
2