The Complete Pentek Whole-House Cartridge System — 3-Stage (Sediment + Carbon + Iron)

📦 A complete Pentek system — every part is PentekAn all-Pentek point-of-entry system — three Big Blue cartridge stages, no drain, no electricity, just swap the cartridge on schedule.

Pentek 1-inch Big Blue #20 Filter Housing — HD10-20-PR, Pentek 1" #20 Big Blue Filter Housing PR, 150233 ×3

Three 20-inch Big Blue housings — one per stage, heavy-duty 1-inch ports for full whole-house flow.

$448 value

Pentek Dual Gradient Polypropylene 5 Micron Filter Cartridge 20 GPM — DGD-5005-20-BB, Pentek Dual Grad Polyprop. 5 Mic 20 gpm, 155358-43

Stage 1 — dual-gradient 5-micron sediment cartridge captures sand, silt and rust first, protecting the stages behind it.

$92 value

20-inch Big Blue GAC20-BB Carbon Filter Cartridge — GAC20-BB, Pentek T & O Cart, 20 Big Blue, 155249-43

Stage 2 — 20-inch Big Blue GAC carbon cartridge reduces chlorine, taste, odor and many VOCs.

$194 value

Pentek Iron Reduction Filter Cartridge for 20" Big Blue Housing — RFFE20-BB, Pentek Iron Reduction Cart, 20 Big Blue, 155263-43

Stage 3 — Pentek iron-reduction cartridge polishes out dissolved iron and its orange staining.

$265 value

Bought separately: $999 · complete-system price $919 — save $80. One matched Pentek platform: same parts, same service, no mixed brands.

A genuine, brand-consistent Pentek build. The media in each stage is matched to your water problem, and because every part is Pentek, service and replacements stay consistent for the life of the system.

Why a staged cartridge system

A multi-stage Pentek cartridge system treats water in deliberate steps so each stage does one job well: sediment first to protect the stages behind it, then carbon for chlorine, taste, and odor, then iron reduction. Sequencing them this way extends the life of the downstream cartridges and gives cleaner results than trying to do everything in a single filter.

Simple, predictable maintenance

The appeal of a cartridge system is straightforward upkeep: when a stage is spent, you swap a cartridge rather than service a media bed. We can set you up on a replacement schedule and supply the exact cartridges each housing takes, so the system keeps performing without guesswork.

Sizing and support

Cartridge systems are matched to household flow so they do not restrict your water; share your peak demand and water report and we will confirm this configuration fits and provide the manuals to install it.