Heating Return Block Parts

NPD136

CB - Heating Return Block Assembly

$164.78

217 In Stock

NPD139

CB - Heating Return Block Filter

$36.62

177 In Stock

NPD141

CB - Heating Return Block Cap

$12.82

151 In Stock

body { margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background-color: #f4f4f5; /* Light gray background */ overflow: hidden; /* Hide main content flicker */ } /* Full-screen overlay to grab user attention */ .noscript-warning-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(10, 10, 10, 0.95); /* Dark overlay */ display: flex; justify-content: center; align-items: center; z-index: 10000; } /* The content box for the message */ .noscript-warning-box { background-color: #ffffff; color: #18181b; /* Dark text */ padding: 2.5rem; border-radius: 0.75rem; /* Rounded corners */ max-width: 500px; width: 90%; text-align: center; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); } .noscript-warning-box h1 { color: #dc2626; /* Red-600 for warning */ margin-top: 0; font-size: 1.5rem; font-weight: 600; } .noscript-warning-box p { font-size: 1rem; line-height: 1.6; margin-bottom: 0.5rem; }

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