Global Water - ETCF - Carbon Block Twist filter ATC Controls brine draw and rinse

Controls brine draw and rinse cycles in the lower valve body

The cartridge shell itself can be reused indefinitely

Twist-off body design means fast filter changes without tools

} Fleck Valve Connection Hardware

The TQ56-536FC typically serves as a final polishing stage with scale inhibition

Global Water - ETCF - Carbon Block Twist filter ATC Controls brine draw and rinseGlobal Water Replacement Filter ETCF Carbon Block Twist Filter Tool free carbon block filtration for G3RO, G4RO, and G5RO bottleless water coolers. Twist in, twist out, done in seconds. Carbon Block 1 Micron Twist Lock WHY IT WORKS Effective carbon filtration without the hassle Easy Twist Installation No tools, no plumber, no downtime. Quarter turn design locks the filter into place on all compatible Global Water coolers in seconds. 1 Micron Carbon