Fleck 3900

3″ Commercial Control Valve


Lead-free brass valve body for superior strength and durability

Continuous service flow rate of 250 GPM with a backwash of 100 GPM

Backwash capability accommodates softener tanks up to 63″ and filter up to 42″ in diameter

Fully adjustable 3- or 5-cycle control for efficient and reliable water treatment system

Designed for single or multiple tank systems

Environmental protective cover for water resistance, corrosion resistance, and UV stability

Time-tested, hydraulically-balanced piston for service and regeneration

Rugged-built electromechanical timer designed with heavy duty 3/8″ wide plastic gears


NXT- Network controller uses on-board communication capabilities to link multiple valves (via off-the-shelf CAT3, CAT5, or better cables) for system types 4,5,6,7,9,and 14

NXT Spec Sheet

Fleck NXT Service Manual

XT- Offers a two-line, 16 character LCD backlit display for easy entering of master and user programing as well as view of diagnostics

Fleck XT Spec Sheet

Fleck XT Service Manual

Electromechanical Timer- Simple to adjust and easy to service with quick access to all internal components


Product Spec Sheet Product Service Manual
Fleck 3900