UVC / Amalgam / Ozone
OASE Bitron Premium UVC clarifier for large koi ponds
60, 120 & 180 W
- Reduces suspended algae and germs ·
- Supports permanently clear pond water
- Flow-optimized stainless steel reactor
- Powerful UVC technology
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OASE Bitron Premium UVC clarifier for large koi ponds – 60, 120 & 180 W
Details
All About the Product
Product description
The OASE Bitron Premium is a UVC clarifier with a stainless steel reactor for large koi ponds, available with 60, 120, or 180 watts of UVC power. It operates on the principle of an immersion UVC and fits into both pumped and gravity-fed systems. Depending on the version, it is suitable for koi ponds up to 33, 66, or 100 m³.
Which version is right for your pond?
With koi, it is not the maximum pond size that counts, but the koi value. Koi burden the water significantly more than a few goldfish due to their feed and waste. OASE therefore specifies three values:
| Version | Koi pond up to | Pond with fish up to | Pond without fish up to |
|---|---|---|---|
| 60 W | 33 m³ | 50 m³ | 90 m³ |
| 120 W | 66 m³ | 100 m³ | 185 m³ |
| 180 W | 100 m³ | 160 m³ | 280 m³ |
Our advice: If your pond is near the limit, is in full sun, or is heavily stocked, choose the next size up. For even larger koi ponds, several Bitron Premium units can be combined.
How the Bitron Premium works
- Like an immersion UVC: The water flows through a flow-optimized reactor and, according to OASE, is irradiated directly and with virtually no loss.
- Long dwell time: The reactor keeps the water in the UVC light for an exceptionally long time. This allows the radiation to act thoroughly against algae and germs.
- Before or after the filter: The Bitron Premium can be positioned before or after a ProfiClear filter and is also suitable for other gravity-fed systems.
- Lamps switchable individually: With the 120 W and 180 W versions, you can switch the lamps on individually as needed.
- Flexible mounting: Horizontal or vertical, secured with stainless steel tension locks.
- Safe: According to OASE, the device is 100% protected against eye damage. You can verify operation via visual inspection.
Gravity-fed or pumped
The Bitron Premium has DN 110 connections and is therefore made for gravity-fed systems with a bottom drain. It sits before or after the filter, for example behind an OASE ProfiClear. In combination with ProfiClear filters, the OASE Clear Water Guarantee applies.
In gravity-fed operation, OASE recommends a flow rate of 16,500 l/h for the 60 W, 33,000 l/h for the 120 W, and 50,000 l/h for the 180 W model. The OASE AquaMax Eco Titanium is suitable as a pump for gravity-fed systems, and the AquaMax Eco Premium for pumped systems.
Tip: Floating algae grow primarily when there is a lot of phosphate in the water. BHK Teichmineral binds phosphate and thus tackles the root cause.
Technical data
| Feature | 60 W | 120 W | 180 W |
|---|---|---|---|
| OASE item no. | 73374 | 73375 | 73376 |
| UVC lamps | 1 × 60 W Eco | 2 × 60 W Eco | 3 × 60 W Eco |
| Dimensions (L × W × H) | 700 × 290 × 205 mm | 700 × 387 × 305 mm | 700 × 417 × 340 mm |
| Max. flow rate | 40,000 l/h | 70,000 l/h | 100,000 l/h |
| Rec. gravity flow rate | 16,500 l/h | 33,000 l/h | 50,000 l/h |
| Power cable | 5 m | 7 m | 7 m |
EAN: 4010052733746 (60 W), 4010052733753 (120 W), 4010052733760 (180 W)
| For all versions | Value |
|---|---|
| Connections | 1 inlet and outlet each, DN 110 |
| Max. operating pressure | 0.6 bar |
| Connection voltage | 220–240 V, 50/60 Hz |
| Material | Plastic and stainless steel |
| Function control | Visual inspection |
| Application | Gravity-fed and pumped system |
| Guarantee | 2-year manufacturer guarantee |
Spare parts and maintenance
- OASE UVC Replacement Lamp Eco 60 W: You need 1, 2, or 3 units, depending on the version. According to OASE, each lamp lasts for 12,000 operating hours, which is approximately 16 months in continuous operation.
- OASE quartz glass D44 × 518 mm with flanged edge, item no. 13331
Frequently asked questions
Which Bitron Premium is right for my koi pond?
According to OASE, the 60 W is sufficient for koi ponds up to 33 m³, the 120 W up to 66 m³, and the 180 W up to 100 m³. For heavy stocking or a lot of sun, we recommend the next size up.
Should the Bitron Premium go before or after the filter?
Both are possible. In gravity-fed systems, it is often placed after the filter, where it irradiates water that has already been cleaned.
Is the Bitron Premium suitable for gravity-fed systems?
Yes. With its DN 110 connections, it is designed exactly for that. However, it also works in pumped systems up to 0.6 bar.
What flow rate does the Bitron Premium require?
In gravity-fed operation, OASE recommends 16,500, 33,000, or 50,000 l/h, depending on the version. It can handle a maximum of 40,000, 70,000, or 100,000 l/h.
Can I combine several Bitron Premium units?
Yes. If the pond gets larger or the stocking density increases, the system can be easily expanded with additional units, according to OASE.
How often do I need to replace the UVC lamps?
After 12,000 operating hours, which is approximately 16 months in continuous operation.
Is UVC light dangerous for koi?
No. The radiation acts on the flowing water only inside the sealed reactor.
What is the guarantee?
OASE grants a 2-year manufacturer guarantee. The conditions can be found in the OASE warranty terms. Your statutory warranty rights towards Koi-Area remain unaffected by this.
Purchased at Koi-Area
Koi-Area is an OASE Platinum Dealer, the highest dealer level at OASE. With us, you receive expert advice online and in our shop in Mönchengladbach. We import koi directly from Japan, keep them in our own facilities, and build koi ponds. We are happy to clarify which UVC power your pond requires personally: info@koi-area.de.
Technical specifications
At a glance
Dimensions
Application and Dosage
Application
What buyers say
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Before you order
Frequently Asked Questions
When will it arrive?
Ships from Germany, usually within 2 to 4 business days. Individual items are reproduced upon order – in that case, it takes about 10 to 14 business days. The estimated delivery date is shown at the top of the checkout area.
How much is shipping?
Within Germany €5.90 up to 30.9 kg, tiered above that. To Austria, Belgium, Luxembourg and the Netherlands from €7.50, to Denmark from €13.90 – each tiered by weight.
Can I pick it up from you?
Yes, free in Mönchengladbach, Tomphecke 25. Monday, Wednesday, and Friday from 10 am to 5 pm. Just add it to your cart and select pickup at checkout.
I'm not sure if this is suitable for my pond.
Then call us before you order: +49 152 27783926, Monday to Friday from 9 am to 3 pm. You’ll speak with someone who keeps koi and builds pond systems themselves. If a product isn’t right for your setup, we’ll tell you.
Can I return it if it doesn't fit after all?
The statutory 14-day right of withdrawal applies to equipment, accessories, and unopened goods. For hygiene reasons, we cannot accept returns of opened food and grooming products.
How do I pay?
PayPal, Klarna, Apple Pay, Shop Pay, credit card and the other payment methods you see at checkout. You can also pay in person when picking up your order.
Replacement items
OASE Quartz Glass D44 x 518 with flanged edge
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