Skip to product information
1 of 3
Brand: GrowoniX

Growonix PREMIUM KDF85/CATALYTIC CARBON FILTER 4.5 X 20

Growonix PREMIUM KDF85/CATALYTIC CARBON FILTER 4.5 X 20

SKU: SKU:CF-4520-KDF

Ordering a large quantity of this item?
As long as the order total is more than $2K you can:

Regular price $127.48 USD
Regular price Sale price $127.48 USD
Sale Sold out
Shipping calculated at checkout.

Availability: Online | Will Call Locations Stock May Vary

This 4.5 x 20 KDF85 catalytic carbon filter is the full-size cartridge for GrowoniX tall and XL systems, rated for 34,000 gallons. It clears chloramine, chlorine, iron, heavy metals, and scale, fitting the EX600-T, EX1000-T, CX4000, and XL-Scrubber.

View full details

GrowoniX Premium KDF85 Catalytic Carbon Filter (4.5 x 20)

This GrowoniX premium KDF85 catalytic carbon filter is the full-size 4.5" x 20" cartridge, pairing KDF85 media with highly reactive catalytic carbon for maximum chloramine and metal removal. It reduces chloramine, chlorine, iron, hydrogen sulfide, heavy metals, and scale, and the KDF85 media is bacteriostatic and extends carbon life. The big body carries roughly 34,000 gallons of chlorine or chloramine removal, or about 17,000 gallons of RO water at a 1:1 ratio. It is NSF-certified for drinking water.

Long-Run Chloramine Removal for Tall and XL Systems

This 20-inch cartridge fits the tall builds: EX600-T, EX1000-T, EX4000-T, CX4000, the XL-Scrubber, and the Sedi Scrub. The KDF media reduces about 99% of free chlorine, 90% of iron, and 98% of soluble lead and mercury. Flush it at install to clear carbon fines, then plan a change every 6 to 12 months. On a big system, tracking gallons treated beats guessing at the calendar.

Key Features

  • 4.5" x 20" Full Size: Maximum capacity for tall and XL housings.
  • 34,000-Gallon Capacity: Chlorine/chloramine, or about 17,000 gal RO at 1:1.
  • KDF85 + Catalytic Carbon: Removes chloramine, metals, and scale in one cartridge.
  • Bacteriostatic Media: Controls microorganism growth and extends carbon life.
  • Metal Reduction: ~99% free chlorine, ~90% iron, ~98% soluble lead and mercury.

Technical Specifications

Specification Value
Filter Size 4.5" x 20" (Tall)
Carbon Type KDF55/85 + catalytic carbon
Removes Chloramine, chlorine, iron, H2S, heavy metals, scale, bacteria
Capacity 34,000 gal chlorine/chloramine (17,000 gal RO at 1:1)
Micron Rating 10 micron
Fits in System EX600-T, EX1000-T, EX4000-T, CX4000, XL Scrubber, Sedi Scrub
Replacement Interval 6-12 months (flush at install)
Certification NSF certified (drinking water)