In what way is this filter diffrrent (better?) than the gac-20bb? for whole house chlorine removal before a water softener.

These are both carbon filters, and will fit the same housings, the main difference is how they are constructed, which affects the performance. RFC20-BB filters offer a radial flow design which greatly reduces the pressure drop (RFC20-BB is rated at 0.9 psi pressure drop at 4 gpm, while the GAC-20BB you are comparing to is rated at 10 psi pressure drop @ 4gpm). The RFC20-BB filters also have a higher filtration capacity. RFC20-BB are rated at >100,000 gallons of chlorine taste and odor reduction at 4gpm, while the GAC-20BB are rated at 25,000 gallons.

Would this work with other 20 x 4.5 filter systems, like a replacement for an american plumber wrc25hd20?

RandyYes this filter will work in other systems that take 4"x 20" filter

This filter is 1/2 " longer then the old one will it still work?

This filter is designed to fit into the 10 inch Big Blue filter housings which is similar in size to most other 10 inch heavy duty filter housings. We have not made changes to the length of these cartridges, so if you had this model previously, it should still fit correctly. Not knowing what specific housing you have, I cannot for certain tell if this cartridge will fit. If you would like further details, please reach out to our technical support team (USA based) at 800-279-9404.

Is this good enough for a spotless car wash filter?

The RFC can be used as pretreatment for equipment that actually provides spotless rinse. This filter in itself does not provide spotless rinse.

155247-43 RFC-20BB Carbon Filter (20" x 4.5"), 25 Micron

Product ID: 349244447

Details

Material
Carbon Fibre
Product dimensions
11.4D x 11.4W
Item weight
2.5 Pounds
External testing certification
NSF ANSI
Product benefits
Reduces Taste

⚡Low pressure drop radial flow

💧25 micron sediment filtration

🌡️Wide temp range 40-125°F

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 268.87

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ireland.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

💧 Elevate your water game with every drop!

UNIVERSAL FIT - Compatible with most standard 20-inch Big Blue housings for easy upgrades.
EFFORTLESS FLOW - Radial flow design ensures high water flow up to 2 GPM with minimal pressure loss.
BUILT TO PERFORM - Operates reliably across a broad temperature range (40-125°F) for versatile use.
PRECISION FILTRATION - 25 micron rating captures sediment, protecting your home’s water appliances.
CRYSTAL CLEAR HYDRATION - Effectively reduces chlorine, taste, and odor for pure, refreshing water.

The Pentek RFC-20BB carbon filter cartridge delivers superior chlorine, taste, and odor reduction with a 25 micron sediment filter. Its radial flow design maintains high flow rates up to 2 gallons per minute at low pressure drop, fitting most 20-inch Big Blue housings. Engineered for residential whole-home or point-of-use systems, it operates efficiently across 40 to 125°F, ensuring clean, great-tasting water throughout your home.

Specifications

ASIN	B003SRQG0U
Best Sellers Rank	#8,466 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #67 in Replacement Under-Sink Water Filters
Brand Name	Pentek
Customer Reviews	4.7 4.7 out of 5 stars (1,038)
EU Spare Part Availability Duration	1 Years
External Testing Certification	NSF, ANSI
Global Trade Identification Number	00051678247433
Item Dimensions D x W x H	4.5"D x 4.5"W x 20"H
Item Type Name	20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Activated Carbon (GAC) Filter, 20" x 4.5", 25 Micron
Item Weight	2.5 Pounds
Manufacturer	Pentair Industries
Manufacturer Part Number	155247-43
Material Type	Granular Activated Carbon
Model Number	RFC20-BB
Number of Items	1
Product Benefits	Removes Odor
UPC	051678247433
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.