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Total House Protection

Pura UVBB units are large residential whole-house or light industrial systems for high flow situations where up to 15 gallon-per-minute flow rate is needed. Available as single-stage UV-only units or as multi-stage systems with sediment and carbon filtration.

Pura “Big Boy” UVBB Series

“Big Boy” units use standard-sized high-flow vessels (known in the industry as 20" Big Blue) that are capable of treating up to 15 gallons per minute.

These units are built with full-flow double-sized “big blue” vessels and accept jumbo-sized 4.5" x 20" cartridges, and are purchased with a UV lamp with sediment and/or carbon block filter.

Big Boy units come with 1.5" ports. These are tough, heavy-duty units built to deliver very clean, bacteria-free water.


The Pura UVBB-3 Big Boy SD/CB20XBB (15830131) is a 15-gallon-per-minute UV water purification system that includes 5-micron sediment and 10-micron carbon block filtration to disinfect your water supply. The Pura UVBB-3 is built with an electrical lamp indicator (LED), uses up to 22 watts of power, and operates at a standard 115-120V.


  • Flow Rate: 15 GPM

  • Electronic lamp indicator

  • Standard Voltage: 115-120V

  • Inlet/Outlet: 1-1/2” NPT

  • Dimension: 28" x 23" x 9.0"

  • Frequency: 50-60 Hz

  • Power Consumption: 22 watts

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