EZ-Flo HI-FLO Coupling Connection with Ball Valve, 3 Inch Replacement Reverse Osmosis RO Membranes The current NEC standard is

The current NEC standard is currently available from the NFPA at www

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EZ-Flo HI-FLO Coupling Connection with Ball Valve, 3 Inch Replacement Reverse Osmosis RO Membranes The current NEC standard isHi Flo Coupling (HFC) ball valve connectors are available for mainline sizes ranging from 2 to 4 with socket x socket connections for gluing into PVC pipe. They are manufactured from Schedule 40 PVC with adaptable tubing connections, having 3 8 and 1 2 connections standard. The HFC is primarily used to connect the Engineered Systems but may be adapted to other models as well when necessary. The HFC provides the ability to adjust the differential