H401 Heavy Duty Filter

The H401 Heavy Duty is the original long-life replacement filter for Lumina (under-sink) and Premium-class SPIRIT water systems. It uses NSF-certified GAC plus polyphosphate to reduce chlorine, off-tastes, sediment and helps control limescale build-up — built for Cyprus water conditions and a 9–12 month service cycle.

The H401 Heavy Duty is the original filter for the Lumina under-sink water system and Premium-class SPIRIT water dispensers that use the H401 cartridge. Always use the original H401 to ensure correct fit, flow and filtration performance.

Heavy Duty means an extended-capacity build engineered for systems in steady daily use. The H401 is designed for a 9–12 month replacement cycle, compared with shorter cycles for standard cartridges — fewer swaps per year and lower-friction annual maintenance.

Recommended replacement cycle is 9–12 months, depending on usage, water hardness and consumption. Filter capacity is up to roughly 1,000 litres.

GAC handles chlorine, off-tastes and odours. Polyphosphate handles scale-control. Most generic cartridges do only the first job. The H401 does both — that's a real, meaningful technical difference under hard Cyprus tap-water conditions.

Class II is a recognised chlorine-reduction performance class for activated-carbon filters. It indicates the cartridge meets a defined level of chlorine reduction — relevant under chlorinated municipal supplies like those across Cyprus.

An over-saturated filter loses effectiveness. You may notice a drop in water taste and quality, reduced filtration performance, faster limescale build-up inside the system, and added load on internal components — which can shorten the system's overall service life.

Lumina and Premium-class systems are engineered as complete units. The original H401 ensures correct fit, the right flow rate, expected filtration performance and full warranty coverage. Off-brand alternatives can cause leaks, reduce performance, or damage internal components — and they typically skip the polyphosphate scale-control element entirely.

Order original H401 Heavy Duty Filters directly from SPIRIT Water Pro in Cyprus. Our English-speaking customer service team can assist with ordering, scheduling, installation tips and any post-purchase support you need.