Product Overview
The Tier1 25 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek RFC-20BB, SDP-4520, RFC20-BB | 4.5 x 20 Water Filter (2pk) prioritizes thoughtful design, achieved through user-tested construction for everyday needs. Made with Activated Carbon Block, measuring 4.55"D x 4.55"W x 19.58"H, weighing 2 Pounds. Notable features include compatible replacement and replacement models, contributing to its time-tested character.
Key Features
- COMPATIBLE REPLACEMENT MODELS – This 25 micron 20 x 4.5 radial flow carbon filter is a replacement for Pentair RFC20-BB, RFC-20BB, SDP-4520, 155247-43 and fits most standard 20 inch x 4.5 inch whole house filter housings.
- RADIAL FLOW GRANULAR ACTIVATED CARBON DESIGN – Radial flow carbon media allows water to pass evenly through the cartridge, supporting higher flow rates while reducing chlorine taste and odor and capturing coarse sediment commonly found in treated municipal water.
- 25 MICRON PRE-FILTRATION FOR WHOLE HOUSE SYSTEMS – Designed to capture larger sediment, grit, and particulate matter before finer filtration stages, helping protect plumbing lines, valves, appliances, and downstream filtration equipment.
- SERVICE LIFE VARIES BY WATER CONDITIONS – Replacement frequency depends on sediment levels, water quality, and micron rating; finer filters capture smaller particles more quickly, so monitoring flow or pressure changes helps determine when cartridge replacement is needed.
- IDEAL WHOLE HOUSE PRE-FILTER – Commonly used as a first-stage or main entry point sediment filter to help protect plumbing, appliances, water softeners, and carbon filters from sediment buildup and premature wear.
Why Choose the Tier1 25 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek RFC-20BB
Choose the Tier1 25 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek RFC-20BB, SDP-4520, RFC20-BB | 4.5 x 20 Water Filter (2pk) when you need long-term value backed by reliable construction. The compatible replacement adds further value, making it suitable for varied replacement under-sink water filters needs.
Best For
Buyers shopping for everyday needs will find the Tier1 25 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek RFC-20BB, SDP-4520, RFC20-BB | 4.5 x 20 Water Filter (2pk) a strong match thanks to thoughtful design.
Quick Summary
The Tier1 25 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek RFC-20BB is a Replacement Under-Sink Water Filters product by Tier1. Material: Activated Carbon Block. Product Dimensions: 4.55"D x 4.55"W x 19.58"H. Item Weight: 2 Pounds. External Testing Certification: CE. Product Benefits: Removes Chlorine Taste and Odor, Improves Water Taste, Odor, and Quality. Price: $136.06.
Product Specifications
| Specification | Details |
|---|---|
| Material | Activated Carbon Block |
| Product Dimensions | 4.55"D x 4.55"W x 19.58"H |
| Item Weight | 2 Pounds |
| External Testing Certification | CE |
| Product Benefits | Removes Chlorine Taste and Odor, Improves Water Taste, Odor, and Quality |