Company engineers, designs and manufactures a complete line of fully automatic water filters from 100-8,000 GPM capacity. Automatic backflush cycle is short, lasting only 8-15 seconds. Filtration is from 15 microns and up, with no maintenance required. ASME pressure vessel code stamping is available. Electronic controls are featured. Valve & Filter Corp. 5270 Marshall St. Arvada, CO, 80002