Rated at End-of-Lamp-Life (EOLL)
UV lamp output degrades over time. Most brands publish best-case new-lamp figures. Every UVonic flow rate is published at EOLL - protection that holds for the entire 16,000-hour lamp lifespan.
UVonic T5 UV Sterilizers MKII 5"
UVonic T5 UV Sterilizers MKII 5"
3rd party validated UV disinfection
UVONIC UV STERILIZERS
MKII Series - Rated at End-of-Lamp-Life
Professional UV disinfection rated at End-of-Lamp-Life. Every flow rate 3rd party validated - protection that holds for 16,000 hours.
16Khour lamp life
30mJ/cm2 dose
EOLLend-of-life rated
UpgradedUV28-T5: 25W upgraded to 28W - better performance, same priceNew: UV40-T5 - 40W model now available
✓ 3rd party validated✓ EOLL dose rated✓ UVT 90% design standard✓ 16,000-hour lamp life✓ Australian designed & distributed
Most UV sterilizers publish performance at brand-new lamp output - the best-case scenario that degrades quickly. Every UVonic flow rate is published at End-of-Lamp-Life (EOLL) - so the dose you are buying still works 16,000 hours later.
The UVonic difference
Why smart operators choose UVonic
UVT 90% design standard
All UVonic units are sized to UVT 90% - the professional standard used in municipal water treatment and commercial aquaculture. Accurate sizing, conservative design, real-world results.
3rd party validated
Every UVonic T5 design has been independently validated by a 3rd party authority on UV disinfection science. Third-party proof, not marketing claims. Verified science.
How we size every UVonic
Sized by our own UV engineering software
Lamp-by-lamp modelling
Our custom-built software places every lamp by exact position and models your water transmittance, flow rate and reactor geometry - so every published flow rate reflects the dose your system will actually receive.
Chamber material modelled
Most commercially available UV calculators only model stainless steel chambers. Ours models the real world - stainless, white PVC and dark chambers (grey PVC or black HDPE) all reflect 254nm UV differently, and that changes the delivered dose.
Your actual water
Generic charts assume clean water. We size on your real transmittance and target dose, then publish the result at EOLL - honest numbers that hold for the full 16,000-hour lamp life.
What you get
Built for professionals. Specified for performance
3rd party validated
Independent 3rd party dose validation applied to every model in the range.
EOLL rated dose
Flow rates published at End-of-Lamp-Life. Performance guaranteed all 16,000 lamp hours.
16,000-hour T5 lamp life
Premium T5 UV lamps - significantly longer than standard UV lamps, reducing running costs.
Heavy-duty 5" PVC body
Larger irradiation chamber delivers higher flow rates without sacrificing UV dose.
Imperial & metric unions
Both union types included. Installs into any existing plumbing - no adapters needed.
Integrated sight glass
Visual confirmation your lamp is running - simple, practical, absent on many competing units.
Countdown timer & indicator light
Countdown timer tracks lamp hours. Indicator light confirms active UV output.
Professional sizing standards
Ponds: 1 turnover/4hr. Aquariums: 1 turnover/hr. Correct hydraulic sizing for real-world results.
Choose your model
Find the right UVonic
| Model | Wattage | Flow rate | Pond volume (est.) | Aquarium volume (est.) | Chamber |
|---|---|---|---|---|---|
| UV28-T5 | 28W | 50 lpm | ~12,000 L | ~3,000 L | Single |
| UV40-T5 | 40W | 75 lpm | ~18,000 L | ~4,500 L | Single |
| UV48-T5 | 48W | 90 lpm | ~21,600 L | ~5,400 L | Single |
| UV87-T5 | 87W | 170 lpm | ~40,800 L | ~10,200 L | Single |
| UV120-T5 | 120W | 235 lpm | ~56,400 L | ~14,100 L | Single |
| UV155-T5 | 155W | 310 lpm | ~74,400 L | ~18,600 L | Single |
| UV240-T5 | 240W | 470 lpm | ~112,800 L | ~28,200 L | Double |
| UV310-T5 | 310W | 640 lpm | ~153,600 L | ~38,400 L | Double |
All flow rates at 30 mJ/cm2 EOLL · UVT 90% · Volume estimates at 1 turnover/4hr (pond) and 1 turnover/hr (aquarium). For aquaculture and commercial sizing, contact BTA for a site-specific assessment.
Product updates
What's new in the lineup
UV28-T5 - 25W upgraded to 28W
The UV28-T5 has been upgraded from 25W to 28W. If you previously had the 25W model, the replacement is now the 28W unit. Better UV output and flow performance - same price, same form factor, drop-in compatible.
UV40-T5 - new 40W model
A new 40W model bridges the gap between the 28W and 48W units - ideal for medium ponds (~18,000 L) and larger display aquariums (~4,500 L). Flow: 75 lpm at 30 mJ/cm2 EOLL.
Who it's for
Built for serious aquatic systems
Ponds
Koi, goldfish, and native fish face continuous pathogen pressure. UVonic units sized for 1 complete pond volume turnover every 4 hours - consistent treatment on the correct hydraulic schedule.
Large-scale aquariums
Marine, reef, and high-stocking display systems demand aggressive UV programs. UVonic targets 1 full volume turnover per hour - meeting the elevated demands of closed recirculating systems.
Professional aquaculture
UV240-T5 and UV310-T5 double-chamber models deliver industrial-grade UV capacity for RAS, hatcheries, nurseries, live seafood holding, and research facilities.
FAQ
Common questions
What does EOLL mean and why does it matter?
EOLL stands for End-of-Lamp-Life. UV lamp output decreases over time. Most manufacturers publish at new-lamp output. UVonic flow rates are published at the end of the lamp's 16,000-hour lifespan - the stated 30 mJ/cm2 dose is what you get even from an aging lamp.
What is UVT 90% and why is it used?
UVT 90% is the professional standard used in water treatment and commercial aquaculture - representing clean, well-managed water. Designing to this standard ensures accurate sizing with inherent conservatism built in for real-world conditions.
What turnover rate should I use to size my UV?
Ponds: 1 full volume turnover every 4 hours. Aquariums: 1 turnover per hour. When in doubt, size up - a UVonic running below its rated flow always delivers more dose, not less.
What does 3rd party validated mean?
The UV system design has been independently verified by a recognised external authority on UV disinfection science - the same standard applied to municipal water treatment worldwide. Independent science, not marketing claims.
Do UVonic units include unions for Australian plumbing?
Yes. Every unit ships with both imperial and metric unions - installs directly into your existing plumbing in inches or millimetres. No adapters required.
How long do UVonic lamps last?
UVonic T5 UV lamps are rated to 16,000 hours - significantly longer than standard UV lamps (typically 8,000-9,000 hours). At 24/7 operation this is approximately 22 months between lamp changes.
What is the difference between single and double chamber models?
Single chamber models (UV28 through UV155) use one UV lamp in a single irradiation chamber. Double chamber models (UV240-T5 and UV310-T5) use two chambers in series, doubling irradiation capacity for the highest flow applications.
When are the 3" models available?
The 3" diameter UVonic models are currently in development using the same validated design process, EOLL dose rating, and UVT 90% standard. Email info@btaqua.com.au to register your interest.
Not sure which model fits your system?
Send BTA your system volume, turnover target and water quality. We will size the right UVonic for your setup - modelled on your actual water, not a generic chart.
Talk to BTATrade & wholesale
Aquaculture facilities, maintenance teams and installers can contact BTA for bulk requirements and trade pricing.
Request trade pricing Ask a technical questionBiotech Aquatica · Australian supplier · btaqua.com.au
0
Total items
$0.00
Taxes included. Discounts and shipping calculated at checkout.
Product subtotal