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Saphir Pro UV

The Daro Saphir Pro range is a UK-made, WRAS-approved family of UV water sterilisers for boreholes, wells, springs and other private water supplies — six sizes from 18 to 160 l/min at 30 mJ/cm², all built around an electropolished 316 stainless steel chamber and a single, readily available low-pressure lamp.

The Pro version adds a selective 254 nm UV sensor with a digital UV intensity display, low-UV warning, digital lamp-life readout, volt-free contacts and a 4–20 mA output — it measures the dose actually reaching the water rather than just whether the lamp is lit. Pick your size from the table below on the peak flow your pump can deliver.

18–160 l/min
Flow @ 30 mJ/cm²
¾" – 1½"
BSPT male
10 bar
Max pressure
8,760 h
Lamp life
WRAS approvedKiwa Reg 4Made in UK316 stainless chamber10-year chamber guarantee
ModelFlow @ 30 mJ/cm²Flow @ 40 mJ/cm²ConnectionsLamp
Saphir 1 Pro18 l/min12.5 l/min¾" BSPTGER15SE (15 W)
Saphir 2 Pro30 l/min22.5 l/min¾" BSPTGER25SE (25 W)
Saphir 3 Pro53 l/min40 l/min¾" BSPTGER25XOSE (45 W)
Saphir 4 Pro60 l/min44 l/min1" BSPTGER36SE (40 W)
Saphir 7 Pro118 l/min88 l/min1" BSPTGER36XOSE (75 W)
Saphir 10 Pro160 l/min116 l/min1½" BSPTGER36XOSE (75 W)
Size on peak flow, not average use, and pre-filter to 5–10 micron. Iron, manganese and hardness must be treated before the UV unit.
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6 products

    Logo for DaRo UV Systems
    Saphir Pro UV
    Saphir 1 Pro 15w UV 18 litres/minute

    The Daro Saphir 1 Pro is a UK-made, WRAS-approved UV water steriliser for private supplies — boreholes, wells, springs and rainwater. It treats up to…

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    Logo for DaRo UV Systems
    Saphir Pro UV
    Saphir 2 Pro 25w UV 30 litres/minute

    The Daro Saphir 2 Pro is a UK-made, WRAS-approved UV water steriliser for private supplies — boreholes, wells, springs and rainwater. It treats up to…

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    Logo for DaRo UV Systems
    Saphir Pro UV
    Saphir 3 Pro 45w UV 53 litres/minute

    The Daro Saphir 3 Pro is a UK-made, WRAS-approved UV water steriliser for private supplies — boreholes, wells, springs and rainwater. It treats up to…

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    Logo for DaRo UV Systems
    Saphir Pro UV
    Saphir 4 Pro 36w UV 60 litres/minute

    The Daro Saphir 4 Pro is a UK-made, WRAS-approved UV water steriliser for private supplies — boreholes, wells, springs and rainwater. It treats up to…

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    Logo for DaRo UV Systems
    Saphir Pro UV
    Saphir 7 Pro 75w UV 118 litres/minute

    The Daro Saphir 7 Pro is a UK-made, WRAS-approved UV water steriliser for private supplies — boreholes, wells, springs and rainwater. It treats up to…

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    Logo for DaRo UV Systems
    Saphir Pro UV
    Saphir 10 Pro 75w UV 160 litres/minute

    The Daro Saphir 10 Pro is a UK-made, WRAS-approved UV water steriliser for private supplies — boreholes, wells, springs and rainwater. It treats up to…

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