We offer both OptiVenn™ and Avant® models to replace obsolete SCD systems. For the replacement of units being used for microbial inactivation, slight modifications to the inlet and outlet piping may be required.
When replacing double-ended SCD models used for TOC applications, please fill out the form and one of our Applications Specialists will assist in determining the appropriate replacement Avant system.
The OptiVenn series from Aquafine is a powerful and adaptable family of UV systems engineered to meet the rigorous standards of the pharmaceutical, food & beverage, microelectronics, and other industrial sectors.
Compact & Energy-Efficient Design
Equipped with high-efficiency lamps and ballasts, OptiVenn systems consume less power and require fewer lamps—reducing energy costs and minimizing lamp failures.
The optimized design results in a smaller footprint, making it ideal for space-constrained installations.
Smart Monitoring Interface
A user-friendly control panel provides real-time system status and health updates at a glance, simplifying operation and maintenance.
Flexible Installation Options
Modular design allows the control panel to be mounted on top, front, or even on a nearby wall—whatever suits your space best.
The rotatable chamber offers four mounting angles, helping reduce re-piping and installation costs.
Bidirectional water flow through either inlet or outlet adds to installation versatility.
Additional Benefits
No cooling required for systems with four lamps or fewer—delivering a cost-effective solution with high performance.
Baffle support system helps prevent sleeve breakage, enhancing durability.
Easy-access control panel simplifies servicing compared to older, integrated panel designs.


The Avant series incorporates the latest innovations in UV technology and best-in-class components to reduce the total cost of ownership and drastically simplify operation and maintenance. This highly advanced product line utilizes UV technology to break down trace chemicals such as total organic carbon (TOC), chlorine and chloramines, and ozone, while also providing microbiological inactivation.
Energy and Cost Savings:
Avant only requires 37.5% of lamps or power compared to legacy SCD-H product line to meet the same performance level to reduce TOC levels below 2 ppb with significantly lower power consumption.*
Compact footprint:
40-60% fewer lamps, sleeves, drivers
Reduced installation costs and footprint impact.
HP model uses a special grade quartz sleeve and lamps that allows to significantly reduce the number of UV units, by up to 75%.
*When comparing SCD-H to Avant HP over 5-year cycle


If you have questions about upgrading your obsolete SCD series system, please read these FAQs or complete the form to have one of our experts get in touch.
Have questions?
Call us at 1 (888) 220-6118 or complete the form below.


Transition from legacy SCD UV systems to modern OptiVenn or Avant replacements, delivering reduced footprint, lower operating costs, and advanced UV performance.
With the advancement of ultraviolet (UV) technology and the introduction of new Aquafine systems, we regularly evaluate our product portfolio to ensure that we offer only our top-performing systems. As a result, in 2016, we discontinued the SCD series of UV systems.
While we remain committed to helping you keep your system operating efficiently while you transition to a new Aquafine UV system, the last date to purchase replacement parts for your SCD Series system will be December 1, 2026. A full list of parts is available through your Channel Partner.

