Aqua‑Terra Lighting 11W UVC Replacement Tube Pond UV Filter Bulb, High‑Output 4‑Pin Linear Lamp for Laguna Pressure Flo & Compatible Systems Enhances Water Clarity Algae Control

💧 Powerful Algae & Green Water Control – High‑output 11W UVC tube neutralises free-floating algae cells for significantly clearer water and improved overall pond health. 🔬 Premium Germicidal UVC Performance – High-quality quartz glass ensures strong ultraviolet output for dependable algae control and enhanced filtration efficiency. 📏 Precise Size & Dimensions – 212 mm tube length (approx. 230 mm including pins), 12 mm diameter, double-ended 4‑pin design — fits most pond UV clarifiers and filter systems including Laguna Pressure Flo models. 🔁 Replace Annually for Best Results – UVC effectiveness declines over time, even if the lamp still glows. Changing your UVC tube every 6–12 months ensures peak performance. 🛠 Easy Fit Installation – Simple push-in or twist-in installation into compatible UV housings; follow your filter or clarifier manual for correct placement.