Fleck O-Ring, 3900 Adptr Coupling Industrial Water Softener Fleck 2900 2" NXT 300K System Pressure Monitoring and Control:

Pressure Monitoring and Control:

a 3/4 inch stainless steel flow control valve

It is specifically designed for Fleck 9100 valves paired with resin tanks sized between 13 and 16 inches in diameter

Pro Potassium Permanganate 10 Lb

Fleck O-Ring, 3900 Adptr Coupling Industrial Water Softener Fleck 2900 2" NXT 300K System Pressure Monitoring and Control:The FL16078 is a genuine Fleck O ring for the 3900 adapter coupling, supplied by Pentair. This seal sits within the adapter coupling connection of a Fleck 3900 control valve, forming a watertight barrier at the joint so water cannot leak out or bypass internally where the coupling meets its mating surface. Like all O rings in a control valve, it is small and inexpensive yet essential to leak free operation. Genuine Fleck O ring for the 3900 adapter