Charger CRB-100LV Expansion Vessel, 100 Litre. • Patented CAD-2 diaphragm technology. • NSF Standard 61, CE/PED, WRAS, ACS, ISO-9001, Gost, Evrazes approved. • Stainless steel water connection. • Condensation reducing design. • Two part polyurethane, epoxy primed paint finish. • Leak free air valve cap sealed with closed cell foam.