Abstract: A modular pump is provided for a water treatment system, and includes a housing having a water inlet and a separate water outlet, a pump located in the housing and being in fluid communication with the water inlet, a check valve located within the housing downstream of and in fluid communication with the pump, a flow meter located within the housing and in fluid communication with, the check valve, a pressure sensor located within the housing, in communication with, and downstream of the check valve, and in fluid communication with the water outlet. Also, a control system is electrically connected to the pump, the pressure sensor and the flow meter.

Abstract: A modular water filtration system including a filter manifold and a filter cartridge is provided. The filter manifold includes a body, a first arm member, a second arm member, a brace, and a slot positioned on the brace. The filter cartridge includes a cartridge head and a fin member protruding upwardly from the cartridge head, and the fin member is sized to be received within the slot of the filter manifold. The filter cartridge is adapted to engage the filter manifold through a horizontal force when the fin member is aligned with the slot.

Abstract: A valve for a water system including a water supply conduit, the valve having a valve housing that defines a valve inlet and valve outlet. The valve inlet is connected to the water conduit and at least one piston is disposed within the valve housing and is configured to direct flow within the valve. A motor associated with the valve housing is operably attached to the piston and is further configured for driving the piston between a service position, a bypass position, and a shutoff position. The valve further includes at least one sensor associated with the valve inlet or valve outlet for monitoring a water condition. A control system receives data from the at least one sensor and is configured for actuating the motor between the service position, the bypass position, and the shutoff position in response to the data.

Abstract: A modular water filtration system including a first filter manifold and a second filter manifold is provided. The first filter manifold includes a first bracket and a first pair of arm members horizontally extending from the first bracket. One of the first pair of arm members includes a protrusion defining a bore. The second filter manifold includes a second bracket and a second pair of arm members horizontally extending from the second bracket. One of the second pair of arm members includes a duct, and the duct is configured to receive the protrusion of the first filter manifold to provide fluid communication through the bore between the first filter manifold and the second filter manifold.

Abstract: An air gap adapter for use with a water treatment faucet constructed and arranged for being mounted in a standard countertop faucet opening. The adapter includes an adapter base with an underside, defining a base throughbore for a standard faucet inlet nipple, having an RO retentate inlet port and a separate RO retentate outlet port. A cone insert has a platform covering at least a portion of the base, and a cone formation vertically projecting from the platform and being in fluid communication with the inlet port. An outlet opening is on the cone formation in fluid communication with the outlet port. An adapter cover disposed over the cone insert and the base includes a cone cover portion and a base cover portion, as well as a cover throughbore in registry with the throughbore. The adapter is constructed and arranged to be optionally mounted to a countertop with the faucet.

Abstract: A modular water filtration system including a first filter manifold and a second filter manifold is provided. The first filter manifold includes a first bracket and a first pair of arm members horizontally extending from the first bracket. One of the first pair of arm members includes a protrusion defining a bore. The second filter manifold includes a second bracket and a second pair of arm members horizontally extending from the second bracket. One of the second pair of arm members includes a duct, and the duct is configured to receive the protrusion of the first filter manifold to provide fluid communication through the bore between the first filter manifold and the second filter manifold.

Abstract: A water filtration system that includes a filter manifold having a rotatable cover is provided. A filter cartridge is provided that includes a sump having a filter head integrally secured to a first end and cap releasably secured to a second end. A locking mechanism extending from the cover locks into the filter manifold to position the cartridge in an “in-use” state. The filter cartridge further includes two offset cylindrical inlet and outlet members protruding from the filter head that are designed to engage corresponding inlet and outlets of the filter manifold through a horizontal engagement mechanism. A check valve is positioned within the filter manifold adjacent the inlet of the filter cartridge to control fluid flow through the water filtration system. The filter cartridge head includes fins upwardly extending therefrom that are configured to engage corresponding slots formed in a plurality of corrugated channels of the filter manifold.

Abstract: A water filtration system that includes a filter manifold having a rotatable cover is provided. A filter cartridge is provided that includes a sump having a filter head integrally secured to a first end and cap releasably secured to a second end. A locking mechanism extending from the cover locks into the filter manifold to position the cartridge in an “in-use” state. The filter cartridge further includes two offset cylindrical inlet and outlet members protruding from the filter head that are designed to engage corresponding inlet and outlets of the filter manifold through a horizontal engagement mechanism. A check valve is positioned within the filter manifold adjacent the inlet of the filter cartridge to control fluid flow through the water filtration system. The filter cartridge head includes fins upwardly extending therefrom that are configured to engage corresponding slots formed in a plurality of corrugated channels of the filter manifold.

Abstract: Embodiments of the invention provide a normally open valve, a normally closed valve, and a combination valve. The valves include a valve body with an inlet coupled to a fluid supply line, an outlet providing a service flow of fluid, a vent venting to atmosphere, a lower piston, a lower diaphragm, and a mechanical valve actuator. The mechanical valve actuator includes an upper piston, an upper diaphragm, a pilot piston with a bore and a plunger, and a spring. The spring is positioned either inside the pilot piston for the normally open valve or inside the upper piston for the normally closed valve. The valves are actuated based on a control fluid entering a system pressure port and exceeding a pressure set point in order to either open or close the valve.