Shower Head Filter NZ: How to Choose the Right One

A shower head filter removes chlorine, sediment and other contaminants from your shower water before it reaches your skin and hair. This guide covers how they work, what to look for, and which type suits NZ homes.

Why use a shower head filter in New Zealand?

Most NZ town supplies are chlorinated. Chlorine is essential for safe drinking water, but in the shower it strips natural oils from skin and hair — which shows up as dryness, irritation, dull hair and flare-ups for anyone with eczema or sensitive skin. Hot water makes it worse, because chlorine vaporises and is inhaled as well as absorbed.

A filter at the shower head is the simplest fix: no plumber, no change to the rest of the house, and it works immediately.

Shower head filter vs inline shower filter

• Inline shower filter — screws between the shower arm and your existing shower head. You keep the head you have, and the filter is easy to swap. This is what most NZ homes want.
• Filtered shower head — an all-in-one unit that replaces your shower head. Simpler look, but you're locked into that head and its spray pattern.

Our NaturaWai shower filter is an inline filter — it fits any standard NZ shower arm in a couple of minutes and doesn't reduce pressure.

What to look for

• Chlorine removal media — look for KDF-55 and/or calcium sulfite. Plain carbon works poorly in hot water; KDF-55 and calcium sulfite are designed for it.
• Multi-stage — sediment stage plus chlorine stage is the minimum. Extra media for heavy metals and scale reduction is a bonus in hard water areas.
• Flow and pressure — a good filter shouldn't noticeably drop pressure. Check the rated flow.
• Cartridge life and cost — most last 6–12 months depending on water quality. Check replacement cartridge availability and price before buying.
• Fitting — standard NZ shower arms are ½" BSP. Any decent filter should fit without adapters.

Do shower filters help with hard water?

They help with the effects of it. Filters with KDF-55 reduce scale build-up and mineral deposit on skin and hair, though they don't soften water in the way a whole-home softener does. If you're in a hard-water area (parts of Canterbury, Hawke's Bay, Wairarapa), a shower filter is the fastest noticeable improvement; a whole house water filter or softener is the full fix.

Our recommendation

For most NZ homes, the NaturaWai shower filter is the right pick — multi-stage, KDF-55 based, fits standard fittings, no pressure loss. For babies and bath-time, see the shower and bath filter range.

30-day money-back guarantee. Free NZ shipping on orders over $200.