Advantage Feature: More heat-collecting: whole glass vacuum tube; Good heat preservation:thinken polyurethane layer,professional forth technics,completef froth,improve the design of water outlet,improve the heat preservation of tank; Low cost:It doesnt consume groovy energy,no pollution,cost once but benefit long; Easy install:Joint ostium adapts especial technology,no leakage,easy install; Long lifetime:inner and outside shell are made of SUS304 stainless steel,and its life time is more than15 years; Complete specification:ordinary model,slope model,project model,there are about three series and more than forty kinds for you; More choose:We follow clientsdemand to choose relevant inclosure to extend the function of solar water heater; Good service:You can contain dealer in your place anytime if there is something wrong in your products bought in our company, and you also can contain our company direct. With reassurance to buy and comfortable to use. Perfect part: Vacuum tube- It adopts advanced a new technology named 12 layer spurt plating. It choose super hard borax and silica glass, and selective absorb coat through gradual change A1-N/A1,so that the tube has high-powered absorptance and low reflectance. It through interlayer vacuum has inimitable heat preservation effect, its radiation is strong and the temperature can be to 270; Heat preservation shell of tank- It adopts West Germany import polyurethane forth technics, the foam is thin,uniformity, the density is rational and close rate is high. Its heat preservation shell is 50cm, so its heat preservation effect is better; Outside water tank- It choose import good SUS304 BA food grade stainless steel, which looks beautiful and decent; Inner shell It choose import good SUS304 BA food grade stainless steel, with high frequency jointing technic,so the welding line is in the bottom of tank, so the hot water producted is health and sanitary can be drunk; Cover of top tank- Pressing molding with wale avoid fake. It adopts thinken stainless steel, which has longer lifetime than plastic cover of top tank; Airproof and dustproof winding- All of them adopts silicon rubber as material, which has better qulity and longer lifetime; Frame- It adopts stainless steel frame,and the whole combination avoids the lose in the transportation.