Zapp Pure UV ZP40.3 – High-Intensity Pond Sterilizer (40,000 Gallons)

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Model ZP-5 ZP-10 ZP-20 ZP-40
Height 23-inches 32-inches 43-inches 52-inches
Max Pond Size 6,000 gallons 12,000 gallons 20,000 gallons 40,000 gallons
Flow Rate 2,100 gph 4,000 gph 6,000 gph 7,812 gph

Easy Maintenance and Lamp Replacement

The Zapp Pure UV ZP40.3 is a high-performance ultraviolet sterilizer engineered for large ponds up to 40,000 gallons. With a robust 316 stainless steel construction and a 4-inch diameter vessel, it ensures unrestricted water flow and maximum UV exposure for effective algae control.

Key features include:

  • High-Intensity Output: Delivers over 70,000 microwatts of UV power, effectively eliminating green water and harmful pathogens.

  • Durable Stainless Steel Design: Crafted from 316 stainless steel, offering superior resistance to corrosion and ensuring longevity.

  • Easy Maintenance: Lamp and ballast replacements are straightforward, reducing downtime and maintenance costs.

  • Versatile Installation: Can be mounted horizontally or vertically to suit your pond setup.

  • Flow Rate: Supports a maximum flow rate of 7,812 gallons per hour, accommodating high-flow filtration systems.

Compared to competitors like the Matala UV, the Zapp Pure UV ZP40.3 offers higher intensity and easier maintenance, making it a superior choice for serious pond enthusiasts.

Reviews (2)

  • Overall rating:
Chris W.
April 10, 2025

Installed it last week—the product feels premium, and already, the water clarity has noticeably improved.

Model ZP-5 ZP-10 ZP-20 ZP-40
Height 23-inches 32-inches 43-inches 52-inches
Max Pond Size 6,000 gallons 12,000 gallons 20,000 gallons 40,000 gallons
Flow Rate 2,100 gph 4,000 gph 6,000 gph 7,812 gph

Easy Maintenance and Lamp Replacement

The Zapp Pure UV ZP40.3 is a high-performance ultraviolet sterilizer engineered for large ponds up to 40,000 gallons. With a robust 316 stainless steel construction and a 4-inch diameter vessel, it ensures unrestricted water flow and maximum UV exposure for effective algae control.

Key features include:

  • High-Intensity Output: Delivers over 70,000 microwatts of UV power, effectively eliminating green water and harmful pathogens.

  • Durable Stainless Steel Design: Crafted from 316 stainless steel, offering superior resistance to corrosion and ensuring longevity.

  • Easy Maintenance: Lamp and ballast replacements are straightforward, reducing downtime and maintenance costs.

  • Versatile Installation: Can be mounted horizontally or vertically to suit your pond setup.

  • Flow Rate: Supports a maximum flow rate of 7,812 gallons per hour, accommodating high-flow filtration systems.

Compared to competitors like the Matala UV, the Zapp Pure UV ZP40.3 offers higher intensity and easier maintenance, making it a superior choice for serious pond enthusiasts.

Reviews (2)

  • Overall rating:
Chris W.
April 10, 2025

Installed it last week—the product feels premium, and already, the water clarity has noticeably improved.

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