Skip to content
FREE SHIPPING • Orders over $45+
FREE SHIPPING • Orders over $45+
AutoShip and save 15% off your first order!

iFilters RF-4520 Dual Purpose Radial Flow Cartridge 4.5" x 20"

SKU RF-4520
Original price $55.00 - Original price $55.00
Original price
$55.00 - $55.00
Current price $55.00
Purchase Options
Delivery Frequency
Here's how it works:
These prices don't include taxes or other fees. This subscription auto-renews. It can be skipped or cancelled at anytime.
View subscription policy
Powered by

The iFilters RF-4520 radial flow Sediment and Carbon Filter (Dual Filtration) are 20 inch x 4.5 inch dual purpose filters.

The iFilters RF-4520 filters down to 25 microns and are perfect for compact filtration needs where only one housing is used but dual filtration is needed. This dual (2 stage in one) filter has a 25 micron sediment outer core with GAC Coconut Shell Carbon media in its center. The filter has a 3rd layer of 5 micron Polypropylene at its core to reinforce the filter and further filter contaminants.

Effectively Reduces: Sediment, Organics, Bad Chlorine Taste and Odor.

Filter Media: Polypropylene outer layer, Granular activated carbon media center and Polypropylene center core.

Applications: City or well water.

  • 20" L x 4.5" D.
  • 25 Microns Nominal.
  • 0.9 psi Initial (psi) at 4 gpm Flow Rate.
  • 40 to 125 degrees Fahrenheit Temperature Rating.

Compatible Part or Model Numbers: RFC20-BB and SDP-4520.

This filter fits in most brands 4.5" x 20" housings.

Customer Reviews

Based on 2 reviews
fit and does good job

I been using these in my hydronix big blues and they do a good job.

Great product

Great product decent price. No complaints.