{"product_id":"lse-lighting-uv-c-replacement-kit-for-viqua-d4-43w-15-5-lamp-with-quartz-sleeve-o-rings","title":"LSE Lighting UV-C Replacement Kit for Viqua D4 — 43W 15.5\" Lamp with Quartz Sleeve \u0026 O-rings","description":"\u003cp\u003e\u003cstrong\u003eThe LSE Lighting 602805 kit is a complete replacement assembly containing a 43W UV-C bulb and a quartz sleeve engineered to fit Viqua D4 series ultraviolet water systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your Viqua D4, D4+, D4-V or D4-V+ system running at designed performance with this purpose-made maintenance kit. It combines a 15.5-inch (391 mm) 43W UV-C lamp rated for up to 12,000 hours with a precision quartz sleeve and O-rings to restore proper lamp positioning and system sealing. Manufactured by LSE Lighting in an EPA-registered facility, the kit replaces worn components quickly to avoid downtime and preserve the unit's UV intensity and water flow characteristics.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit restore my Viqua D4 system’s performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing both the lamp and the quartz sleeve refreshes the system’s UV output and optical clarity in one service visit. The lamp supplies 254 nm UV-C energy while the new sleeve ensures that light transmits through clear, undamaged quartz rather than cloudy or fouled glass.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes matched lamp and sleeve to meet original equipment dimensions.\u003c\/li\u003e\n  \u003cli\u003eNew O-rings recreate the factory seal to prevent leaks and maintain chamber pressure.\u003c\/li\u003e\n  \u003cli\u003e12,000-hour lamp life reduces frequency of replacements for easier maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this kit directly compatible with my Viqua D4, D4+, D4-V or D4-V+?\u003c\/h3\u003e\n\u003cp\u003eYes — the 602805 kit is engineered as a direct replacement for Viqua D4 family systems. It follows the same physical and electrical specifications so installation is straightforward and reliable.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e15.5\" (391 mm) lamp length matches OEM D4 lamp size.\u003c\/li\u003e\n  \u003cli\u003eDesigned to fit the D4 series lamp holder and sleeve housing without modification.\u003c\/li\u003e\n  \u003cli\u003eSupplied O-rings sized for original chamber sealing points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical benefits of the 43W UV-C lamp and quartz sleeve combo?\u003c\/h3\u003e\n\u003cp\u003eReplacing lamp and sleeve together maximizes UV transmission and preserves system efficiency, helping maintain designed flow rates and in-chamber exposure. The long-life lamp reduces service intervals while the new sleeve avoids light-blocking deposits or scratches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-output 43W lamp for intended chamber UV intensity.\u003c\/li\u003e\n  \u003cli\u003eQuartz sleeve restores clear optical path for consistent performance.\u003c\/li\u003e\n  \u003cli\u003eFactory-quality components cut troubleshooting time after service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I replace the bulb and sleeve safely and correctly?\u003c\/h3\u003e\n\u003cp\u003eAlways disconnect power and follow the Viqua D4 service instructions; the LSE kit uses the same handling steps as the original parts. Replace O-rings, seat the sleeve properly, and install the lamp without touching the glass to avoid oils that shorten lamp life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn off power and relieve system pressure before opening the chamber.\u003c\/li\u003e\n  \u003cli\u003eInstall supplied O-rings and slide in the quartz sleeve fully seated at both ends.\u003c\/li\u003e\n  \u003cli\u003eHandle the lamp with gloves or a clean cloth and verify proper lamp-holder engagement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this kit is for: The LSE Lighting 602805 43W UV bulb and quartz sleeve combo is for homeowners, service technicians, and facilities managers who own or maintain Viqua D4 series ultraviolet water systems and need a reliable, OEM-compatible maintenance kit that restores designed UV performance and system sealing. It’s ideal for routine annual service, system refurbishing after extended operation, or when replacing degraded sleeves and lamps to preserve consistent water-treatment operation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long will the 43W lamp last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The LSE 43W UV-C lamp is rated up to 12,000 hours under normal operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit include everything needed for a single service?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 602805 kit includes the 43W lamp, quartz sleeve, and O-rings for one complete replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"LSE Lighting","offers":[{"title":"Default Title","offer_id":56799316509012,"sku":"B0DGYMTMZN","price":70.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/lse-lighting-602805-front-view-kit.jpg?v=1786731104","url":"https:\/\/gardenluxe.co.uk\/products\/lse-lighting-uv-c-replacement-kit-for-viqua-d4-43w-15-5-lamp-with-quartz-sleeve-o-rings","provider":"Gardenluxe Uk","version":"1.0","type":"link"}