Description
The Aqua Ultraviolet Twist Series is engineered for the pond builder who values fast lamp + quartz-sleeve service. Where the Classic chamber requires unscrewing the end-cap and unions, the Twist's patented EZ Twist Top releases the lamp assembly with a quarter-turn — making annual lamp replacement a 30-second job. Available in 25 W, 40 W, and 57 W configurations in 2" Black or White housings, with optional integrated wiper. Same Aqua UV chamber design and flow-rate performance as the Classic Series; just a smarter mechanical interface for service.
Key Features
- Patented EZ Twist Top — lamp + quartz sleeve service in seconds, no tools required
- Available wattages: 25 / 40 / 57 W in 2" port size
- Black or White housing color options
- Optional integrated wiper on 25 W and 57 W variants for hands-off maintenance
- Same chamber + lamp + quartz sleeve internals as Classic Series — same flow-rate tables apply
- Drop-in retrofit for Classic Series 2" plumbing — no re-plumbing required
- Made in the USA — Aqua Ultraviolet has manufactured UV sterilizers in Temecula, California since 1992
- Backed by Aqua Ultraviolet's full manufacturer warranty
Specifications
| Series | Twist |
|---|---|
| Body Material | Heavy-wall PVC (Black or White) |
| Lamp Type | T5 high-output UV-C (same lamps as Classic Series) |
| Available Wattages | 25 / 40 / 57 W |
| Port Size | 2" Slip Union (standard) |
| Service Mechanism | EZ Twist Top — quarter-turn lamp release |
| Wiper Assembly | Optional on 25 W and 57 W |
| Lamp Life | ~14,000 hours — replace annually |
| Country of Origin | USA |
Flow Rate (GPH) by Wattage
Twist Series uses the same chamber as Classic at 25/40/57W — flow rates are identical.
| Wattage | Max GPH (Clarification, ~30,000 µW/cm²) — green-water control | Min GPH (Sterilization, ~90,000 µW/cm²) — parasite + bacteria kill |
|---|---|---|
| 25 W | 1,200 GPH | 400 GPH |
| 40 W | 2,900 GPH | 967 GPH |
| 57 W | 3,200 GPH | 1,066 GPH |
Sizing rule: divide your filtered circulation rate (GPH) by the column you need. Pick a unit whose Max GPH ≥ your circulation rate to achieve clarification dose; pick a unit whose Min GPH ≥ your circulation rate to achieve full sterilization dose at that flow.
Frequently Asked Questions
Twist Series vs Classic Series — what's the difference?
Identical UV chamber, identical lamps and sleeves, identical performance. The Twist swaps the screw-on end cap for a patented quarter-turn EZ Twist Top — making annual lamp + quartz sleeve service a 30-second job. Pay a small premium for the convenience.
Are Twist replacement bulbs the same as Classic bulbs?
Yes. Both use the same T5 UV-C lamp by wattage. A 25 W Classic bulb works in a 25 W Twist.
Do I need the wiper version?
Wiper-equipped units are worth the upcharge if your pond has noticeable algae growth or biofilm in the chamber after 2–3 months. Manual cleaning works too — figure 5 minutes every 90 days.
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