--- product_id: 57843318 title: "Twin Pack Replacement 11W UV (Ultra Violet) Bulb Lamp for Pond UVC Filters & Clarifiers" brand: "durabulb" price: "¥7936" currency: JPY in_stock: true reviews_count: 13 category: "Dura Bulb" url: https://www.desertcart.jp/products/57843318-twin-pack-replacement-11w-uv-ultra-violet-bulb-lamp-pond store_origin: JP region: Japan --- # 11W high-efficiency UV output 12-month lifespan & warranty 253.7nm wavelength for max sterilization Twin Pack Replacement 11W UV (Ultra Violet) Bulb Lamp for Pond UVC Filters & Clarifiers **Brand:** durabulb **Price:** ¥7936 **Availability:** ✅ In Stock ## Summary > 🦠 Clear water, zero compromises — stay ahead with DuraBulb UV power! ## Quick Answers - **What is this?** Twin Pack Replacement 11W UV (Ultra Violet) Bulb Lamp for Pond UVC Filters & Clarifiers by durabulb - **How much does it cost?** ¥7936 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/57843318-twin-pack-replacement-11w-uv-ultra-violet-bulb-lamp-pond) ## Best For - durabulb enthusiasts ## Why This Product - Trusted durabulb brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Guaranteed Freshness:** Backed by a 12-month warranty and recommended annual replacement to sustain maximum UV efficiency. - • **Twin Pack Convenience:** Two bulbs in one pack ensure you’re always stocked and ready to maintain peak water quality. - • **Seamless Compatibility:** Fits top pond filter brands like Hozelock and Oase with standard G23 base for easy replacement. - • **Precision UV Wavelength:** Optimized 253.7nm output targets algae and harmful microbes effectively. - • **Power-Packed Purification:** 11W UV bulbs deliver potent sterilization to keep your pond crystal clear. ## Overview This Twin Pack of 11W DuraBulb UV replacement bulbs offers high-efficiency 253.7nm ultraviolet sterilization designed specifically for pond and aquarium filters. Compatible with major brands and featuring a durable G23 base, these fluorescent tubes provide up to 12 months of reliable algae and bacteria control, backed by a full warranty to ensure your aquatic environment stays pristine year-round. ## Description Twin Pack of high quality 11W DuraBulb UVC bulbs for 11 Watt UV Pond Filters and other sterilisation applications Length: 23.2cm Base: G23 2-pin 12 month warranty with all DuraBulb bulbs It is recommended to change the bulbs every 12 months to maintain maximum UV output Compatible with Hozelock Bioforce 4500/9000, Hozelock Vorton 11 (1559), Oase FiltoClear 6000/11000/15000, Oase Filtral 5000/9000, Oase BioPress 10000, Oase BioSmart Set 14000/16000, Oase FiltoMatic CWS 3000/7000, Oase Vitronic 11w and many other 11W UVC Pond Filters with a G23 fitting Review: Competitively priced bulb - Decent bulbs for my Pond UV light. Good value for money with a warranty should if they fail and you ask for a replacement. Decent lifespan according to the manufacturer, which so far I havent had to contact. Does the job fine and provided that they dont blow, should be enough for at least 12 months use. Review: Arrived in 48 hours even under Corona lockdown - Carl at Note Checker Bulbs was super helpful, and managed to get me out the bulbs I needed for a new pond at the house I bought within 48 hours, quicker even than promised. He also helped out when I made an incorrect order. Great service. Bulbs are well packed, work perfectly and even with under 24 hours on, I can already see the algae in my pool thinning out. ## Features - Twin Pack of 11W DuraBulb Replacment Ultra Violet UVC bulbs for 11 Watt pond filters and clarifiers - 11W UV PLS Tubes - 253.7nm UV output for maximum sterilisation - 12 Month Warranty - We recommend changing after 12 months to maintain maximum UV output - Suitable for Fish Pond & Aquarium Filters ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B073W85BS8 | | Accepted Voltage Frequency | 220 to 240 Volts and 50 Hertz | | Average Life Span | 12 Months | | Best Sellers Rank | 15,434 in Garden ( See Top 100 in Garden ) 7 in Water Garden & Pond Ultraviolet Sterilisers | | Brand | DuraBulb | | Brand Name | DuraBulb | | Bulb Base | G23 | | Bulb Shape Size | T | | Bulb base | G23 | | Bulb shape size | T | | Colour | White | | Control Method | Push Button | | Customer Reviews | 4.5 out of 5 stars 596 Reviews | | EU Energy Efficiency Label | High | | Indoor Outdoor Usage | Outdoor | | Item Shape | Tubular(T) | | Item Weight | 85 Grams | | Light Color | White | | Light Source Wattage | 11 Watts | | Light Type | Fluorescent | | Light type | Fluorescent | | Manufacturer | DuraBulb® | | Manufacturer Part Number | 11W-UVCx2 | | Package Quantity | 2 | | Power Consumption | 11 Watts | | Power Source | Electric | | Special Features | High Efficiency | | Special feature | High Efficiency | | Style Name | Twin Pack 11W | | Type of Bulb | Ultraviolet | | Unit Count | 2.0 count | | Wattage | 11.00 | | White Brightness | 1800 Lumens | ## Images ![Twin Pack Replacement 11W UV (Ultra Violet) Bulb Lamp for Pond UVC Filters & Clarifiers - Image 1](https://m.media-amazon.com/images/I/61uYPva+dlL.jpg) ![Twin Pack Replacement 11W UV (Ultra Violet) Bulb Lamp for Pond UVC Filters & Clarifiers - Image 2](https://m.media-amazon.com/images/I/61H1IWZivFL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Competitively priced bulb *by V***2 on 4 June 2026* Decent bulbs for my Pond UV light. Good value for money with a warranty should if they fail and you ask for a replacement. Decent lifespan according to the manufacturer, which so far I havent had to contact. Does the job fine and provided that they dont blow, should be enough for at least 12 months use. ### ⭐⭐⭐⭐⭐ Arrived in 48 hours even under Corona lockdown *by K***K on 26 March 2020* Carl at Note Checker Bulbs was super helpful, and managed to get me out the bulbs I needed for a new pond at the house I bought within 48 hours, quicker even than promised. He also helped out when I made an incorrect order. Great service. Bulbs are well packed, work perfectly and even with under 24 hours on, I can already see the algae in my pool thinning out. ### ⭐⭐⭐⭐ good quality *by K***U on 22 May 2020* Good quality though and worth the wait which was another few days more. Would buy again. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/57843318-twin-pack-replacement-11w-uv-ultra-violet-bulb-lamp-pond](https://www.desertcart.jp/products/57843318-twin-pack-replacement-11w-uv-ultra-violet-bulb-lamp-pond) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-08*