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Whole House Filter

360 Dual Ultra Filter 4.5x20

SKU 360-DUAL-4520-20-5

Starting at $629.00
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Overview

About this system

You are the whole-home solution for cleaner, safer, better-tasting water. The 360 Whole-House Cartridge System filters every drop entering your home through oversized, high-capacity cartridges engineered for city-water performance — simple to service, easy to live with, and backed by a team that answers.

Three Stages of Complete Protection

Stage 1 — Sediment Filtration

Removes sand, silt, rust, and dirt particles that cloud water and clog plumbing. Protects fixtures, valves, and downstream filters.

Stage 2 — Carbon Filtration

Improves taste and smell while reducing chlorine, chloramine, and chemical byproducts. Delivers cleaner, fresher water for drinking, cooking, and bathing.

Stage 3 — Salt-Free Anti-Scale Conditioning

Prevents hard-water scale buildup on pipes, faucets, and appliances — without salt or brine discharge. Perfect for homeowners who want scale protection without a softener.

For true hardness removal: add a 360 Salt-Based Softener (listed in You May Also Like).

Key Features

  • High-Flow Performance (Up to 20 GPM) — maintains strong pressure throughout the home, even with multiple showers running.
  • No Electricity or Backwash — no drain line, no programming, no moving parts. Just reliable, low-maintenance filtration.
  • Twist-Off Filter Housings — quick, tool-free cartridge changes designed for homeowners who want simple maintenance.
  • American-Made Components — built with premium housings, double O-ring seals, and high-capacity cartridges.
  • Customizable Filtration (SP3 Upgrade) — add a third cartridge for chloramine reduction, fine sediment polishing, VOC removal, fluoride reduction, nitrate reduction, or custom media based on your water test.
  • Compact Footprint — wall-mounted design fits tight utility spaces.
  • NSF-Certified Cartridges — certified media for safety, reliability, and long-term performance.

Engineering Specifications

Model Flow Rate Cartridge Size Dimensions
360-Cartridge-Dual Up to 20 GPM 4.5" x 20" Dual Housing
360-Cartridge-Triple (SP3) Up to 20 GPM 4.5" x 20" Triple Housing
SKU PW-FILT-DUAL-4520

How It Works

  • Water enters Stage 1 — the sediment cartridge removes dirt, rust, and particulates.
  • Water flows into Stage 2 — the carbon cartridge reduces chlorine, chloramine, chemicals, taste, and odor.
  • Water passes through Stage 3 — salt-free anti-scale media conditions minerals to prevent scale buildup.
  • Clean, conditioned water flows to every tap — better taste, better clarity, better protection.

Installation

Point-of-entry installation filters all water entering the home. No drain line or electrical connection required. Professional installation recommended.

10-Year Limited Warranty

Your system's tank and housing are covered by a 10-year limited warranty from date of purchase, protecting against defects in material and workmanship under normal residential use. Coverage is administered directly by 360 Water Filtration as your Penguin Water dealer — no manufacturer runaround, no third-party claims desk. Lifetime technical support is included, and licensed installation is available.

Full terms, exclusions, and claims process available on request. Warranty covers parts only; does not cover labor, shipping, or damage from improper installation, incoming water quality, freezing, or operation outside rated pressure/temperature limits.

360 Water Filtration — Elite Support

  • Response within 1 business hour
  • Emergency escalation within 15 minutes
  • Phone support answered in under 2 minutes
  • Technical resolution within 24 hours
  • Installer dispatch within 48 hours
  • 24/7 omni-channel support — phone, SMS, chat, and AI agent
  • Dedicated dealer success manager for every account

We don't just sell equipment — we stay reachable after the sale. That's the 360 Water Filtration difference.

You May Also Like

  • 360 Salt-Based Softener — for full hardness removal and silky water feel.
  • 360 Hybrid Filter + Softener Combo — filtration and softening in one tank.
  • 360 SP3 Add-On Cartridge — custom third-stage filtration for chloramine, fluoride, or VOC reduction.

How This Compares

Dual 4.5 by 20 Ultra Filter System

Multi-stage cartridge filtration in one footprint. For a single stage, see the 4.5" x 20"; for tight spaces, the Dual 4.5" x 10" does the same in a smaller size.

© 2026 360 Water Filtration — All Rights Reserved. Engineered for City Water. Built in the USA.

At a glance

Where it fits in your home

Part of your 360 whole-home water system. Sized and installed to match your water, and backed by 360 Water Systems support from selection through service.
TypeWhole House Filter
Filter Type20/5 Micron Pleated
SKU360-DUAL-4520-20-5
Brand360 Water Systems

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