<h2>Overview</h2>
<p>The <strong>Pentek RFC-BB</strong> is a 10″ Big Blue radial flow carbon water filter cartridge engineered for point-of-entry (POE) whole-house and high-flow-rate applications. This cartridge uses granular activated carbon (GAC) media to effectively remove chlorine, improve taste and odor, and reduce sediment from municipal water supplies. The unique radial flow design draws water from the outer shell inward through the GAC bed, minimizing pressure drop while containing carbon fines—a common issue with traditional loose GAC cartridges.</p>
<h2>Key Features</h2>
<ul>
<li><strong>Radial Flow Design:</strong> Water flows from outside shell through GAC media into polypropylene core, reducing carbon fines and pressure drop</li>
<li><strong>NSF/ANSI Standard 42 Certified:</strong> Independently tested and certified for chlorine taste and odor reduction</li>
<li><strong>25 Micron Filtration:</strong> Nominal 25-micron porous polyethylene outer shell traps fine particles and carbon fines</li>
<li><strong>Extended Filter Life:</strong> 35,000–50,000 gallon capacity; replace every 6–12 months or when water pressure/quality drops</li>
<li><strong>Durable Construction:</strong> Polypropylene endcaps and spun polypropylene core withstand high-flow and whole-house demands</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Dimensions:</strong> 10″ length × 4.5″ outer diameter</li>
<li><strong>Micron Rating:</strong> Nominal 25 micron</li>
<li><strong>Filter Media:</strong> Granular Activated Carbon (GAC)</li>
<li><strong>Outer Shell:</strong> 70-micron porous polyethylene</li>
<li><strong>Endcaps:</strong> Polypropylene</li>
<li><strong>Core:</strong> Spun polypropylene</li>
<li><strong>Gasket:</strong> Buna-N</li>
<li><strong>Flow Rate Capacity:</strong> Rated for high-flow whole-house applications</li>
<li><strong>Operating Temperature Range:</strong> 40°F to 125°F (4.4°C to 51.7°C)</li>
<li><strong>Capacity:</strong> 35,000–50,000 gallons</li>
<li><strong>Certification:</strong> NSF/ANSI Standard 42 for chlorine, taste, and odor reduction</li>
</ul>
<h2>Typical Applications</h2>
<p>The Pentek RFC-BB is ideal for:</p>
<ul>
<li>Whole-house point-of-entry (POE) water filtration systems</li>
<li>Municipal water chlorine, taste, and odor removal</li>
<li>High-flow-rate residential applications</li>
<li>Replacement in existing 10″ Big Blue filter housings</li>
<li>Systems requiring NSF-certified chlorine reduction</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Pentek 10″ Big Blue filter housings</li>
<li>All standard 10″ × 4.5″ Big Blue heavy-duty filter housings</li>
<li>Most major brand water filter housings rated for 10″ × 4.5″ cartridges</li>
<li>Honeywell, Ace Hardware, 3M Aqua-Pure, and other OEM housings compatible with 10″ × 4.5″ cartridges</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Any 10″ × 4.5″ carbon filter cartridge</li>
<li>OEM or aftermarket GAC cartridges designed for 10″ Big Blue housings</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Whole-house water filtration systems and point-of-entry (POE) architectures</li>
<li>Standard 10″ × 4.5″ filter housing connections and endcaps</li>
<li>All NSF Standard 42-compliant applications requiring chlorine taste and odor reduction</li>
</ul>
