Regnum Inline Alkaline Extra Plus Filter

The target outlet value stated on the label is pH ~8.5 or higher; the value achieved depends on the feed water, contact time and how long the filter has been in use. Quick-connect stems allow tool-free installation.

Features

Raises the pH of RO water by releasing minerals
Target outlet value stated on the label: pH ~8.5+
Releases calcium, magnesium, sodium and potassium
Can be added to existing RO units as an additional filter
Tool-free, quick replacement with quick-connect stems
Fits standard 2.5" inline filter positions

Applications

Additional filter for residential RO units
Under-sink and countertop water purifiers
Mains-fed (bottleless) water dispensers
Retrofitting to existing units
Office and small commercial treatment systems

Stock Code	Model	Outlet pH (label)	Max. Flow (L/min)	Capacity* (L)	A (mm)	B (mm)
6-25-ALKEP-R	2.5" Alkaline Extra Plus Filter	~8.5+	2.8	9462	280	65

Dimensions

A: Overall length (including connection stems) · B: Outer diameter. Sealed (welded) housing; the filter cannot be opened and is replaced as a unit. Flow direction is marked on the housing.
* Label value (2,500 gal). Mineral release and pH effect decrease over the service life and depend on the feed water.

Operating Conditions

Operating pressure: 1.4 - 8 bar (20 - 116 psi)
Operating temperature: 4 - 38 °C (39 - 100 °F)
Maximum flow rate: 2.8 L/min (168 l/h)
Replacement interval: 9,462 L or 6 months max.

Materials and Construction

Filter media: Alkaline minerals, activated carbon
Minerals released: Calcium, magnesium, sodium, potassium
Housing: Plastic (typically PP), welded
Connection: Quick-connect stems 4/6, both ends
Use: Disposable, sealed

Shut off the unit's water supply and open the faucet to relieve pressure.
Install the filter between the membrane outlet and the tank inlet.
Make the connections, observing the flow direction on the housing (IN → OUT).
Slowly reopen the water supply and check the connections for leaks.
On first use, flush for a few minutes until the water runs clear to remove fines.

The filter is disposable and cannot be opened or washed. Replace it after 9,462 litres or every 6 months at the latest. The pH can be checked with a test kit. Do not use with microbiologically unsafe water without disinfection.