Overview
Factory lamp kit for the Aqua Ultraviolet VIPER 400W UV sterilizer with 3" stainless steel housing. Restores peak germicidal performance in large, high-flow systems using a single high-output, low-pressure (amalgam) UV-C lamp.
Key Features
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Genuine Aqua UV 400-watt HO UV-C lamp matched to 3" stainless VIPER units
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OEM-matched components to maintain correct fit, sealing, and UV dose
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Service-friendly kit minimizes downtime on critical life-support loops
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Ideal for aquaculture, big ponds, and commercial aquarium systems
Compatibility
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For VIPER 400W sterilizers in 3" stainless steel configuration
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Not compatible with 2" stainless or 3" plastic VIPER bodies, nor other wattages (800W/1200W)
Specifications
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Lamp Power: 400 W (low-pressure amalgam UV-C)
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Peak Wavelength: ~254 nm (germicidal)
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Housing Fit: 3" stainless VIPER chamber
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Service Life: Replace about every 9–12 months of continuous use (or per UV meter/dose targets)
What’s Included
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(1) 400W UV-C lamp — VIPER, 3" stainless fit
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(1) Set of end seals/O-rings sized for the 3" stainless end assembly
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(1) Set of required end hardware/insulator(s) (kit dependent)
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Quick install sheet
Installation & Safety Notes
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Disconnect power and let the unit cool.
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Isolate and depressurize plumbing; drain the chamber.
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Open end assembly; remove old lamp/seals (avoid touching new lamp glass).
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Inspect/clean the quartz sleeve; replace if cloudy, etched, or cracked.
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Lightly lube new O-rings with silicone-safe grease; seat squarely.
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Reassemble hand-tight, then snug—do not overtighten.
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Restore flow, power ON, verify strike, and check for leaks after first run.