Tier1 10 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek EPM-20BB, 155783-43, EPM4-20BB | 4.5 x 20 Water Filter (3pk)
Tier1 10 Micron 20 x 4.5 Water Filter | Whole House Radial Flow Carbon Cartridge | Granular Activated Pre-Filter | Replacement for Pentek EPM-20BB, 155783-43, EPM4-20BB | 4.5 x 20 Water Filter (3pk)
Couldn't load pickup availability
- 24/7 Customer Support
- Risk-Free 30-Day Returns
- Fast & Reliable U.S. Shipping
Contact Information
Contact Information
30-Day Hassle-Free Returns
30-Day Hassle-Free Returns
Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.
✔ Easy return process
✔ Fast refunds
✔ No hidden conditions
Fast U.S. Shipping
Fast U.S. Shipping
We ship within the United States only — no international delays.
✔ Processing time: 1–2 business days
✔ Delivery time: 3–7 business days
✔ Real-time tracking available
👉 Track your order anytime from the header via Track Order
About This
- COMPATIBLE REPLACEMENT MODELS – This 10 micron 20 x 4.5 radial flow carbon filter is a replacement for Pentair EPM-20BB, 155783-43, EPM4-20BB, AMETEK-155783 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.
- 10 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; 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.
Overview
- Material : Activated Carbon Block
- Product Dimensions : 4.25"D x 4.25"W x 19.58"H
- Item Weight : 22.65 Pounds
- External Testing Certification : NSF
- Product Benefits : Helps reduce chlorine taste and odor across the home, Captures coarse sediment before finer filtration stages, Supports steady water flow in residential systems, Protects plumbing, appliances, and filtration equipment, Designed for municipal water applications Helps reduce chlorine taste and odor across the home, Captures coarse sediment before finer filtration stages, Supports steady water flow in residential systems, Prote… See more

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
FAQ
Water Filtration & Home Water Guide