HWEIUA 18W UV bulb for pond clarifier delivers clearer water for koi ponds.
HWEIUA UV bulb 4-pin base shown for universal pond compatibility.
HWEIUA UV bulb 2537nm peak emphasizes powerful disinfection for crystal-clear water.
HWEIUA high-transmission quartz tube enhances light efficiency for better flow.
HWEIUA 8,000-hour life UV bulb implies longer service between changes.
HWEIUA outdoor pond setup highlights improved water clarity in outdoor ponds.
HWEIUA wide-compatibility UV-bulb supports multiple brands and styles.

HWEIUA

HWEIUA 18W UV-C Bulb 4-Pin Base Replacement for Pond Clarifier | 2 Pack

High-performance patio lawn and garden made for confident daily results

$30.39

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Why customers choose PatioZora Garden

Upgrade your pond, koi pond, or water garden with the HWEIUA 18W UV-C bulb

This 18-watt UV-C lamp is built to fit a standard 4-pin base and measures 8.81 inches in length, making it a straightforward replacement for a wide range of pond clarifier fixtures and water features. It’s designed to help you maintain a clearer, healthier-looking aquatic environment without major fixture changes.

Key purification technology

Engineered around a precise 253.7 nm UV peak and a high-transmission quartz tube, this bulb is optimized to deliver effective UV output in outdoor ponds, koi ponds, aquariums, and water gardens. The result can be a noticeably clearer water appearance and a more vibrant display for your aquatic life.

  • Wide compatibility: a universal replacement compatible with many brands, including AQUATOP, Jebao, Jebo, SUNSUN, Tetra, ViaAqua, Grech, and more.
  • Long-lasting performance: premium quartz tube plus a 2G11 base can provide up to 8,000 hours of operation with proper replacement timing (roughly every 8–10 months).
  • Safety-conscious design: ozone-free UV-C output at 253.7 nm; avoid direct eye exposure and skin contact when the lamp is on.

Real-world use cases

Imagine your outdoor water feature waking up with a crisper, clearer surface and koi gliding through water that looks refreshed after a warm day. This replacement bulb is designed to fit into many popular pond clarifier setups, enabling a refresh without overhauling your system.

  • Koi ponds and outdoor water features: helps sustain water clarity and a welcoming habitat by reducing typical surface contaminants.
  • Fish tanks and water gardens: supports consistent UV output to complement your filtration and circulation strategies.

Maintenance reminder: to preserve UV performance, plan for bulb replacement about every 8–10 months based on usage and environmental conditions.

Important Safety Notice: This 18W UV-C bulb emits short-wave UV radiation with a peak at 253.7 nm and is ozone-free. Never view the lamp directly while it operates, and minimize skin exposure to UV light.

FAQ

Q: Is this bulb compatible with my pond clarifier?

A: Yes—the bulb uses a 2G11 base and fits many popular brands.

Q: When should I replace the bulb?

A: Replace roughly every 8–10 months for consistent UV performance.

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