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OPUS

OPUS water filtration, purification, and enhancement products have been researched and developed by Aviva's founder Nathan Zassman to fulfill multiple criteria for producing better tasting, healthier water for your household. OPUS Healthy Water Systems produce crystal clear, great-tasting water for just pennies a litre -- removing harmful contaminants, pathogens, chlorine, fluoride, chloramines, heavy metals, odors and more, while still retaining (or in some cases, even adding) naturally occurring beneficial minerals.

For an extensive overview of the OPUS approach to purifying drinking water in contrast to other methods and its current system, please download the OPUS Complete Water Purification Systems Guide [PDF].

Looking for More? See all water filtration products.

Related Reading: Water Purification & Treatment Technologies Without Water, Life As We Know It Cannot Exist

17 products
  • OPUS - Advantage-2024 Water Purification System
    Regular price
    $499.99
    Sale price
    $499.99
  • OPUS - AlkaPlus Freedom-2024 Water Purification System
    Regular price
    $499.99
    Sale price
    $499.99
  • OPUS - AlkaPlus-2024 Water Purification System
    Regular price
    $649.99
    Sale price
    $649.99
  • OPUS - Annual Water Filter Replacement Kits
    Regular price
    $114.00
    Sale price
    $114.00
  • OPUS - Bioceramic Hydrogen Water Infusers
    Regular price
    $39.99
    Sale price
    $39.99
  • OPUS - Ceramic Gravity-Fed Water Purifier
    Regular price
    $124.99
    Sale price
    $124.99
  • OPUS - Freedom NANO-2024 Water Purification System
    Regular price
    $499.99
    Sale price
    $499.99
  • OPUS - Freedom-2024 Water Purification System
    Regular price
    $399.99
    Sale price
    $399.99
  • OPUS - Integrity Dual-2024 Countertop Water Purifier
    Regular price
    $249.99
    Sale price
    $249.99
  • OPUS - Integrity Triple-2024 Water Purification System
    Regular price
    $349.99
    Sale price
    $349.99
  • OPUS - NANO-2024 Water Purification System
    Regular price
    $599.99
    Sale price
    $599.99
  • OPUS - Replacement Filters for Drinking Water Purification Systems
    Regular price
    $12.00
    Sale price
    $12.00
  • OPUS - Replacement KDF / GAC Filter (Whole House)
    Regular price
    $249.99
    Sale price
    $249.99
  • OPUS - Replacement UV Bulbs or Ballast
    Regular price
    $24.99
    Sale price
    $24.99
  • OPUS - Sediment Filters for Whole House Systems
    Regular price
    $49.99
    Sale price
    $34.99
  • OPUS - Whole House UV-C Sterilization Unit
    Regular price
    $799.99
    Sale price
    $799.99
  • OPUS - Whole House Water Purification Model 55
    Regular price
    $799.99
    Sale price
    $799.99

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