Aquascape 55 Watt UV Sterilizer Replacement Bulb

The UltraKlear® 5000 55-Watt High-Output UV Bulb is the official replacement lamp for the UltraKlear® 5000 UV Clarifier, designed to deliver powerful algae control for ponds up to 5,000 gallons. Emitting concentrated UV-C germicidal light, this 55-watt bulb disrupts the reproductive structure of single-celled green algae, clearing cloudy water without harmful chemicals.

Engineered to meet OEM specifications, this high-output UV bulb ensures the peak performance of your UV clarifier—maintaining optimal water clarity and promoting a healthy aquatic environment. For best results, replace the UV bulb annually to maintain consistent algae control throughout the season.

✅ Key Features:

• 55-Watt Replacement Bulb – For UltraKlear® 5000 UV Clarifier

• UV-C Germicidal Light – Effectively eliminates green water algae

• OEM Fit & Performance – Designed for maximum compatibility

• Safe, Chemical-Free Clarification – Ideal for koi ponds and aquatic plants

• Quick-Install Design – Simple seasonal maintenance item

• High-Intensity Output – Supports ponds up to 5,000 gallons

✅ Specifications:

• Wattage: 55 watts

• Length: Approx. 20–21″

• Base Type: 4-pin (G55T8 or similar)

• Bulb Type: UV-C germicidal lamp

• Compatible With: Aquascape UltraKlear® 5000 UV Clarifier

• Lifespan: 8,000–10,000 hours (replace yearly for best results)

✅ Ideal For:

• Annual UV maintenance for UltraKlear® 5000 clarifiers

• Controlling algae blooms in large koi and ecosystem ponds

• Enhancing water clarity naturally and safely

• Seasonal pond cleanouts and filter refreshes

• Free Shipping is valid for orders with a subtotal exceeding $199 and all orders will be shipped via UPS. Items purchased for delivery after 3pm will ship the following day. Items purchased for delivery after 3pm on Friday will ship Monday.
• Koi Fish only ship Monday- Wednesday. For orders placed after 3pm on Wednesday, the order will be shipped the following Monday.
• For Motor Freight (LTL) Shipments, oversized or heavy items unsuitable for traditional parcel delivery will be dispatched through a motor freight carrier, as indicated on the product page. Once the carrier receives your order, they will reach out to arrange a delivery time. An individual aged 18 or older must be present to sign for the delivery.
• You may return or exchange an unused or unopened item for a refund (excluding shipping and handling charges) within 30 days of purchase. Following 30 days, the item may be returned in exchange for a store credit. Used chemicals and fish food are not returnable. In addition, all sales on Japanese Koi are final and non-refundable. Should you have any questions or concerns when your fish arrive, please call 908-420-9908.