Pentair 20" Jumbo Triple Whole House Water Filter System

Build a high-capacity three-stage whole-house filtration setup with the Pentair 20" Jumbo Triple Whole House Water Filter System, available in three configurations for custom filtration, rainwater or mains water.

The system comes pre-assembled with three 20" Jumbo filter housings, together with a ball valve, mounting bracket and housing spanner.

Choose Housing Only if you want to select your own cartridges, Rainwater for tank and rural water filtration, or Mains Water for town-water filtration with KDF/GAC treatment.

The larger 20" Jumbo format provides a high-capacity filtration platform for homes, farms and properties with greater water demand.

Product Options

All three options use the same triple 20" Jumbo housing platform, giving you three sequential filtration stages in one pre-assembled system.

Housing Only

The Housing Only option provides the complete pre-assembled triple filtration system without filter cartridges.

This configuration is:

20TRICOM — No Filters

It includes:

• 3 × 20" Jumbo filter housings
• Mounting bracket
• Ball valve
• Housing spanner
• Pre-assembled triple whole-house configuration

No filter cartridges are included.

This option is ideal when you want to select your own compatible 20" Jumbo cartridges based on your water quality and treatment requirements.

With three housings available, you can build a customised sequence using sediment, carbon or other compatible treatment cartridges.

Rainwater

The Rainwater option is configured for tank, rainwater and rural water supplies.

This configuration is:

20TRICOM — GAC for Tank/Rural

It includes:

Stage 1 — 20BPF20
Stage 2 — 20BPX01
Stage 3 — 20BRFGAC

This gives you two sequential sediment filtration stages followed by a radial flow granular activated carbon (GAC) treatment stage.

Stage 1 — 20BPF20 Sediment Filter

The 20BPF20 provides the first sediment filtration stage.

Its role is to capture larger sediment and particulate matter before the water progresses to the finer second-stage cartridge.

Stage 2 — 20BPX01 Fine Sediment Filter

The 20BPX01 provides the second, finer sediment filtration stage.

Positioning the finer cartridge after the first sediment filter provides staged particulate treatment before the water reaches the carbon cartridge.

Stage 3 — 20BRFGAC Radial Flow GAC

The final stage uses the 20BRFGAC Radial Flow Granular Activated Carbon cartridge.

This provides carbon treatment following the two sediment filtration stages.

Rainwater Filtration Path

20BPF20 Sediment → 20BPX01 Fine Sediment → 20BRFGAC Radial Flow GAC

This three-stage configuration is designed specifically for tank, rainwater and rural water supplies.

Mains Water

The Mains Water option is configured for town and mains water supplies.

This configuration is:

20TRICOM — KDF for Town

It includes:

Stage 1 — 20BPF20
Stage 2 — 20BPX01
Stage 3 — 20BKDFGAC

The first two stages provide sequential sediment filtration before the water reaches the final KDF/GAC treatment cartridge.

Stage 1 — 20BPF20 Sediment Filter

The 20BPF20 provides the initial sediment filtration stage, capturing larger particulate matter from the incoming water.

Stage 2 — 20BPX01 Fine Sediment Filter

The 20BPX01 provides the finer second sediment filtration stage.

This staged arrangement prepares the water before it reaches the final KDF/GAC cartridge.

Stage 3 — 20BKDFGAC

The 20BKDFGAC combines KDF media with granular activated carbon (GAC).

This provides the final treatment stage for the town-water configuration.

Mains Water Filtration Path

20BPF20 Sediment → 20BPX01 Fine Sediment → 20BKDFGAC KDF/GAC

This provides a dedicated three-stage configuration for town and mains water supplies.

Why Choose This Whole House Filter System?

• Three-stage whole-house filtration — three 20" Jumbo housings provide sequential water treatment.
• Three configurations available — choose Housing Only, Rainwater or Mains Water.
• Pre-assembled system — supplied as a complete triple-housing configuration.
• 20" Jumbo format — high-capacity platform for whole-house cartridge filtration.
• Customisable Housing Only option — choose three cartridges appropriate for your own water requirements.
• Dedicated Rainwater configuration — two sediment stages followed by radial flow GAC.
• Dedicated Mains Water configuration — two sediment stages followed by KDF/GAC.
• Ball valve included.
• Mounting bracket included.
• Housing spanner included — assists with cartridge servicing.
• Replaceable cartridges — maintain the system without replacing the complete filtration assembly.
• Point-of-entry filtration — treats incoming water before distribution throughout the property.
• High-capacity 20" cartridge format — well suited to properties with greater filtration demand.

How It Works

The Pentair triple system provides three sequential filtration stages.

Water enters the first housing and passes through each cartridge in sequence before continuing into the property's water supply.

The exact filtration path depends on the option selected.

Housing Only

Stage 1 — Your Selected Cartridge → Stage 2 — Your Selected Cartridge → Stage 3 — Your Selected Cartridge

This gives you complete flexibility to build your own three-stage filtration sequence.

Rainwater

Stage 1 — 20BPF20 → Stage 2 — 20BPX01 → Stage 3 — 20BRFGAC

The first two stages provide sediment filtration before the water reaches the radial flow GAC treatment stage.

Mains Water

Stage 1 — 20BPF20 → Stage 2 — 20BPX01 → Stage 3 — 20BKDFGAC

The first two stages provide sediment filtration before the water reaches the KDF/GAC treatment stage.

Best Suited For

The Pentair 20" Jumbo Triple Whole House Water Filter System is well suited to:

• Whole-house water filtration
• Point-of-entry filtration
• Tank water supplies
• Rainwater filtration
• Rural water supplies
• Town water supplies
• Mains water filtration
• Residential properties
• Farms and rural properties
• Higher-demand water systems
• Three-stage filtration
• Sediment filtration
• Carbon filtration
• KDF/GAC treatment
• Custom cartridge combinations
• Properties wanting a pre-assembled filtration platform
• Systems using replaceable 20" Jumbo cartridges

Key Specifications

Which Option Should I Choose?

Choose Housing Only If:

You want the complete pre-assembled triple 20" Jumbo system but prefer to select your own filter cartridges.

This gives you three housings that can be configured around your specific water-treatment requirements.

Important: No filter cartridges are included with this option.

Choose Rainwater If:

Your property uses tank, rainwater or a rural water supply.

You receive:

20BPF20 + 20BPX01 + 20BRFGAC

This provides two sequential sediment filtration stages followed by radial flow granular activated carbon treatment.

Choose Mains Water If:

Your property uses town or mains water.

You receive:

20BPF20 + 20BPX01 + 20BKDFGAC

This provides two sequential sediment filtration stages followed by KDF/GAC treatment.

Rainwater Cartridge Combination

The Rainwater configuration is supplied with three cartridges.

Stage 1 — 20BPF20

The 20BPF20 provides the initial sediment filtration stage.

It captures larger particulate matter before the water reaches the finer second-stage cartridge.

Stage 2 — 20BPX01

The 20BPX01 provides the finer second sediment filtration stage.

Using sequential sediment stages allows progressively finer particulate treatment before the final carbon stage.

Stage 3 — 20BRFGAC

The 20BRFGAC provides the final radial flow granular activated carbon treatment stage.

Together:

Sediment Filtration → Fine Sediment Filtration → Radial Flow GAC Treatment

This is the 20TRICOM GAC for Tank/Rural configuration.

Mains Water Cartridge Combination

The Mains Water configuration is supplied with three cartridges.

Stage 1 — 20BPF20

The 20BPF20 provides the initial sediment filtration stage.

Stage 2 — 20BPX01

The 20BPX01 provides the finer second sediment filtration stage.

Stage 3 — 20BKDFGAC

The 20BKDFGAC provides the final KDF/GAC treatment stage.

Together:

Sediment Filtration → Fine Sediment Filtration → KDF/GAC Treatment

This is the 20TRICOM KDF for Town configuration.

Rainwater vs Mains Water

The main difference between the two cartridge-equipped configurations is the third treatment stage.

Rainwater

20BPF20 → 20BPX01 → 20BRFGAC

The final stage uses radial flow granular activated carbon, creating the GAC configuration intended for tank and rural supplies.

Mains Water

20BPF20 → 20BPX01 → 20BKDFGAC

The final stage uses KDF/GAC, creating the configuration intended for town and mains supplies.

Both systems retain the same first two sediment filtration stages.

Installation

The system is supplied as a pre-assembled triple-housing whole-house filtration system.

Installation should position the system on the incoming water line so water passes sequentially through all three housings.

For cartridge-equipped configurations, maintain the specified cartridge order:

Rainwater

Stage 1: 20BPF20
Stage 2: 20BPX01
Stage 3: 20BRFGAC

Mains Water

Stage 1: 20BPF20
Stage 2: 20BPX01
Stage 3: 20BKDFGAC

After installation, slowly restore water pressure, check all connections carefully for leaks and flush new cartridges appropriately before normal use.

Maintenance

The system uses replaceable 20" Jumbo filter cartridges, allowing the housing assembly to remain installed during routine servicing.

Replacement frequency will depend on:

• Incoming water quality
• Sediment loading
• Water consumption
• Cartridge type
• Treatment requirements

Replace individual cartridges when their treatment performance declines, water flow becomes excessively restricted or the cartridge reaches its recommended service life.

The supplied housing spanner assists with opening the housings during cartridge replacement.

What's Included

Housing Only — 20TRICOM No Filters

• 3 × 20" Jumbo filter housings
• Mounting bracket
• Ball valve
• Housing spanner
• Pre-assembled triple filtration system
• No filter cartridges

Rainwater — 20TRICOM GAC for Tank/Rural

• 3 × 20" Jumbo filter housings
• Mounting bracket
• Ball valve
• Housing spanner
• Pre-assembled triple filtration system
• 1 × 20BPF20
• 1 × 20BPX01
• 1 × 20BRFGAC

Mains Water — 20TRICOM KDF for Town

• 3 × 20" Jumbo filter housings
• Mounting bracket
• Ball valve
• Housing spanner
• Pre-assembled triple filtration system
• 1 × 20BPF20
• 1 × 20BPX01
• 1 × 20BKDFGAC

Frequently Asked Questions

What are the three options?

Choose from:

Housing Only — 20TRICOM pre-assembled system without cartridges.

Rainwater — 20TRICOM GAC for Tank/Rural with 20BPF20, 20BPX01 and 20BRFGAC.

Mains Water — 20TRICOM KDF for Town with 20BPF20, 20BPX01 and 20BKDFGAC.

Are cartridges included with the Housing Only option?

No. Housing Only does not include any filter cartridges.

It allows you to select your own compatible 20" Jumbo cartridge combination.

Which option should I choose for tank water?

Choose the Rainwater configuration.

It includes:

20BPF20 → 20BPX01 → 20BRFGAC

This provides two sediment stages followed by radial flow GAC treatment.

Which option should I choose for town water?

Choose the Mains Water configuration.

It includes:

20BPF20 → 20BPX01 → 20BKDFGAC

This provides two sediment stages followed by KDF/GAC treatment.

What cartridges are included with the Rainwater option?

The Rainwater configuration includes:

20BPF20 — First sediment stage

20BPX01 — Fine sediment stage

20BRFGAC — Radial Flow GAC stage

What cartridges are included with the Mains Water option?

The Mains Water configuration includes:

20BPF20 — First sediment stage

20BPX01 — Fine sediment stage

20BKDFGAC — KDF/GAC stage

Why does the system use two sediment cartridges?

The first two cartridges provide sequential sediment filtration, allowing the incoming water to be progressively treated before reaching the final specialised cartridge.

What does the Rainwater third stage use?

The Rainwater configuration uses the 20BRFGAC radial flow granular activated carbon cartridge as its third treatment stage.

What does the Mains Water third stage use?

The Mains Water configuration uses the 20BKDFGAC KDF/GAC cartridge as its third treatment stage.

Can I choose my own cartridges?

Yes. Select Housing Only if you want to build your own three-stage filtration combination.

What size cartridges does the system use?

The system uses compatible 20" Jumbo / Big Blue format cartridges.

Is the system pre-assembled?

Yes. All three configurations are supplied as a pre-assembled triple 20" Jumbo whole-house filtration system.

Does it include a ball valve?

Yes. A ball valve is included.

Does it include a mounting bracket?

Yes. The system includes a mounting bracket for the three housings.

Is a housing spanner included?

Yes. A housing spanner is supplied to assist with routine filter servicing and cartridge replacement.

Can I change the cartridges later?

Yes. The system uses replaceable 20" Jumbo cartridges, allowing you to replace individual filters or change the filtration configuration without replacing the complete housing assembly.