PressureWave GWS 100 litre expansion vessel for pwb-100lv autoclaveEXPANSION TANK 100 LITERS ATT. 1 W FIXED MEMBRANE The PressureWave PWB 100LV tank from Global Water Solutions is ideal for a wide range of applications including pressurization systems, artesian wells, irrigation systems, constant pressure systems, variable frequency electronic systems, thermal expansion, water hammer protection. The PressureWave PWB 100LV Series is constructed from an original polypropylene liner combined with a high quality FDA