step-by-step water boiler single hot automatic restaurant school hot and cold commercial water dispenser vertical one-piece starting batch

2kd/15l/two open/suitable for 20-30 people 2kd/30l/two open/suitable for 20-50 people 2kd/60l/two open/applicable to 50-100 people 2kd/90l/two open/applicable to 50-200 people 2l/30l/two open/suitable for 20-50 people 2l/60l/two open/applicable to 50-100 people 2l/90l/two open/applicable to 50-200 people 3l/60l/three open/applicable to 50-100 people 3l/90l/three open/applicable to 100-200 people 4l/90l/four open/applicable to 100-150 people 4l/120l/four open/applicable for 150-200 people 2l/30l/two open/suitable for 20-50 people (without base)

common filtration system ultrafiltration filtration system ro reverse osmosis filter system