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NBK-20810 – Site Tube 9 Inch The NBK-20810 Site Tube is a 9-inch clear level indicator designed for outdoor boiler applications. This durable, transparent tube provides easy visual monitoring of boiler water levels, ensuring accurate readings and helping maintain optimal system performance. Key Features: Clear Water Level Visibility – Provides instant, easy-to-read boiler water level indication Durable Material – Built to withstand high-temperature and pressure-resilient environments Simple Replacement – Allows for quick installation and maintenance Universal Fit – Compatible with various outdoor boiler systems requiring 9-inch site tubes Specifications: SKU: 20810 Category: Outdoor Boiler Length: 9 Inches Type: Site Tube / Water Level Indicator Equivalent To: STBG Why Choose the NBK-20810? The NBK-20810 Site Tube is essential for monitoring and maintaining proper water levels in outdoor boilers. Its clear, durable construction ensures long-lasting visibility and accuracy—helping prevent system damage caused by low water levels. A dependable choice for homeowners and maintenance professionals alike. Shipping & Availability: Special order from NBK. Please allow 1–2 business days for processing before shipping.
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🇺🇸 Ship from USA · On Agora since 2026
$39.99