WK2 Water King Sentry Scale Conditioner for Pipes up to 42mm
WK2 Water King Sentry Scale Conditioner for Pipes up to 42mm
SKU:WK2
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Product Description
Water-King WK2: Non-Plumbing Water Conditioner (up to 42mm Pipe)
The Water-King WK2 steps up from the Sentry with four aerials instead of two, which can either reinforce the signal on a single pipe up to 42mm or be split between two smaller pipes — an arrangement that suits properties with more than one supply run, or heat exchangers with particular design requirements.
Like every model in the range, there's nothing to plumb in. The WK2 clips onto your existing pipework and runs continuously from a standard power socket, treating both hot and cold services without diverting any water.
Specifications
| Maximum pipe diameter | 42mm |
| Direct fired gas/oil boiler rating | Up to 40 kW |
| Electrical boiler rating | Up to 10 kW |
| Aerials | 4 aerials, 2.0m, minimum 12 turns |
| Frequency range | 1–10 kHz |
| Peak-to-peak output voltage | 82V |
| Power supply | 230V or 110V |
| Power consumption | 1W |
| Lead length | 1.5m |
| Dimensions | 220 x 155 x 67mm |
| Weight | 1.25kg |
| Ambient temperature range | 0–70°C |
| IP rating | IP65 |
| BMS output | No |
Who it's for
- Larger rental properties or off-grid homes with a 42mm supply
- Households wanting stronger signal reinforcement than the Sentry provides
- Properties with two separate pipe runs needing coverage from one unit
Why it matters
Splitting the WK2's four aerials across two pipes means one unit can cover more of a property's plumbing than a single-pipe model — useful where a rental or off-grid property has separate hot and cold risers, without the cost of fitting two Sentry units.
Installing your WK2
- Decide whether to run all 4 aerials on one pipe for maximum signal strength, or split 2 pairs across two pipes.
- Allow 6cm of straight pipe per aerial pair, either side of a bend if needed.
- Site within 1 metre of a power supply and 45cm of the pipe(s) being treated.
- Wrap the aerials per the enclosed instructions — no plumbing or bypass required.
- Plug in and leave running continuously.
Technical Resources
WK2 Water King Sentry Scale Conditioner for Pipes up to 42mm
Frequently asked questions
For full details on returns, refunds, eligibility, and timeframes, please refer to our complete Refund Policy here:
👉 Refund and Returns Policy
If you are unsure whether your item qualifies for return, please contact our team before sending anything back and we’ll be happy to help.
