Pentair 10" Jumbo Twin Whole House Water Filter System

Build your whole-house filtration around your water supply with the Pentair 10" Jumbo Twin Whole House Water Filter System, available in three configurations for custom filtration, rainwater or mains water.

The system combines two Pentair 10" Jumbo filter housings on a stainless steel mounting bracket, supplied with a ball valve and housing spanner.

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

Product Options

All three options use the same twin 10" Jumbo housing platform, allowing you to choose the filtration configuration that best matches your water source.

Housing Only

The Housing Only option provides the complete assembled twin-housing system without filter cartridges.

It includes:

• 2 × 10BWH 10" Jumbo Filter Housings
• Stainless steel mounting bracket
• Ball valve
• Housing spanner
• Assembled twin whole-house configuration

No filter cartridges are included.

This option is ideal when you already know which cartridges you want to use or need to create a filtration combination for a specific water-quality requirement.

Simply select compatible 10" Jumbo / Big Blue cartridges appropriate for your application.

Rainwater

The Rainwater option is configured for tank and rainwater supplies.

It combines progressive sediment filtration with radial flow granular activated carbon treatment.

Stage 1 — Pentair 10BDGD-PA Dual Gradient Density Sediment Filter

The first stage uses the Pentair 10BDGD-PA, a dual gradient density polypropylene sediment cartridge.

It provides progressive filtration from:

25 Micron Outer Layer → 1 Micron Final Filtration

This allows larger sediment to be captured through the outer portion of the cartridge before finer particles are treated deeper within the filter.

Stage 2 — 10BRFGAC Radial Flow Granular Activated Carbon

The second stage uses the 10BRFGAC Radial Flow Granular Activated Carbon cartridge.

This provides a carbon treatment stage following the sediment cartridge.

Rainwater Filtration Path

25-to-1 Micron Dual Gradient Sediment → Radial Flow Granular Activated Carbon

This configuration provides a ready-made twin-stage filtration system for tank-water applications.

Mains Water

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

It combines dual gradient sediment filtration with a KDF/GAC treatment cartridge.

Stage 1 — 10BDGD Dual Gradient Sediment Filter

The first stage uses the 10BDGD Dual Gradient 25-to-1 Micron Polyspun Sediment Filter.

Its progressive filtration design captures larger particles first before providing finer sediment treatment.

Stage 2 — Pentair 10BKDF-GAC

The second stage uses the Pentair 10BKDF-GAC cartridge.

This cartridge combines KDF media with granular activated carbon (GAC) for mains-water treatment.

The Pentair KDF/GAC cartridge uses high-performance granular activated coconut shell carbon, with KDF media that helps inhibit scale buildup within the filter. It also incorporates a 5 micron spun-bonded polypropylene post sediment element for additional dirt-holding capacity.

Mains Water Filtration Path

25-to-1 Micron Dual Gradient Sediment → KDF + Granular Activated Carbon → 5 Micron Post-Filtration

This combination provides sediment and carbon-based treatment in a single twin-housing whole-house system.

Why Choose This Whole House Filter System?

• Twin-stage whole-house filtration — two 10" Jumbo housings provide flexibility for multiple treatment stages.
• Three configurations available — choose Housing Only, Rainwater or Mains Water.
• Pentair 10" Jumbo housings — built around two 10BWH filter housings.
• Customisable Housing Only option — choose cartridges appropriate for your own water requirements.
• Dedicated Rainwater configuration — combines 25-to-1 micron sediment filtration with radial flow GAC.
• Dedicated Mains Water configuration — combines sediment filtration with KDF/GAC treatment.
• Stainless steel mounting bracket — securely supports the twin housings.
• Ball valve included.
• Housing spanner included — assists with cartridge servicing.
• Assembled system — supplied as a twin whole-house filtration configuration.
• Replaceable cartridges — maintain the system by replacing cartridges rather than the complete filtration unit.

How It Works

Whole-house filtration treats the incoming water through two sequential filtration stages.

The exact treatment depends on the option selected.

Housing Only

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

This gives you the flexibility to build a filtration combination around your specific requirements.

Rainwater

Stage 1 — 25-to-1 Micron Dual Gradient Sediment → Stage 2 — Radial Flow GAC

The sediment cartridge removes particulate matter before the water reaches the carbon treatment stage.

Mains Water

Stage 1 — 25-to-1 Micron Dual Gradient Sediment → Stage 2 — KDF/GAC

The first cartridge provides sediment filtration before the second cartridge provides KDF and activated carbon treatment.

Best Suited For

The Pentair 10" Jumbo Twin Whole House Water Filter System is well suited to:

• Whole-house water filtration
• Point-of-entry filtration
• Residential properties
• Tank and rainwater filtration
• Town and mains water filtration
• Custom twin-stage filtration
• Homes requiring 10" Jumbo filtration
• Properties wanting replaceable cartridge filtration
• Sediment filtration
• Carbon filtration
• KDF/GAC treatment
• Existing or new whole-house filtration installations

Choose the configuration according to your water source and treatment requirements.

Key Specifications

Which Option Should I Choose?

Choose Housing Only If:

You want the twin Pentair housing system but prefer to choose your own filter cartridges.

This is the best option for a custom water-treatment configuration or where you already have compatible cartridges.

Important: No cartridges are supplied with this option.

Choose Rainwater If:

Your home uses a tank or rainwater supply and you want a ready-to-use cartridge combination.

You receive:

10BDGD-PA 25-to-1 Micron Dual Gradient Sediment + 10BRFGAC Radial Flow GAC

This gives you sediment filtration followed by granular activated carbon treatment.

Choose Mains Water If:

Your home uses a town or mains water supply.

You receive:

10BDGD 25-to-1 Micron Dual Gradient Sediment + 10BKDF-GAC

This provides progressive sediment filtration followed by KDF/GAC treatment.

Rainwater Cartridge Combination

The Rainwater configuration contains two cartridges:

1. 10BDGD-PA Dual Gradient Density Sediment Cartridge

Provides progressive 25-to-1 micron sediment filtration.

The gradient design captures larger particles through the outer section before progressively filtering finer particles.

2. 10BRFGAC Radial Flow GAC Cartridge

Provides a granular activated carbon treatment stage following the sediment cartridge.

Together:

Sediment Filtration → Carbon Treatment

Mains Water Cartridge Combination

The Mains Water configuration also contains two cartridges:

1. 10BDGD Dual Gradient Sediment Cartridge

Provides progressive 25-to-1 micron polyspun sediment filtration.

2. Pentair 10BKDF-GAC

Combines KDF media and high-performance granular activated coconut shell carbon.

The cartridge also incorporates a 5 micron spun-bonded polypropylene post sediment element.

Together:

Sediment Filtration → KDF/GAC Treatment

Installation

The system is supplied as an assembled twin-housing whole-house filtration system.

Installation should position the filtration system on the incoming water line so water passes through the two housings in the correct sequence.

The stainless steel bracket provides a mounting platform for the two 10BWH housings.

For cartridge-equipped options, ensure the cartridges are installed in their correct stages:

Rainwater:
Stage 1: 10BDGD-PA
Stage 2: 10BRFGAC

Mains Water:
Stage 1: 10BDGD
Stage 2: 10BKDF-GAC

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

Maintenance

The Pentair twin system uses replaceable 10" Jumbo filter cartridges, allowing the housings and mounting assembly to remain in place during routine servicing.

Cartridge replacement frequency will depend on:

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

Replace cartridges when treatment performance declines, flow becomes excessively restricted or the applicable cartridge reaches its recommended service capacity.

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

What's Included

Housing Only

• 2 × Pentair 10BWH 10" Jumbo filter housings
• Stainless steel bracket
• Ball valve
• Housing spanner
• Assembled twin filtration system
• No filter cartridges

Rainwater

• 2 × Pentair 10BWH 10" Jumbo filter housings
• Stainless steel bracket
• Ball valve
• Housing spanner
• 1 × 10BDGD-PA 25-to-1 Micron Dual Gradient Sediment Cartridge
• 1 × 10BRFGAC Radial Flow Granular Activated Carbon Cartridge

Mains Water

• 2 × Pentair 10BWH 10" Jumbo filter housings
• Stainless steel bracket
• Ball valve
• Housing spanner
• 1 × 10BDGD 25-to-1 Micron Dual Gradient Polyspun Sediment Cartridge
• 1 × 10BKDF-GAC KDF/GAC Cartridge

Frequently Asked Questions

What are the three options?

Choose from:

Housing Only — twin housing system without cartridges.

Rainwater — twin housing system with 10BDGD-PA and 10BRFGAC cartridges.

Mains Water — twin housing system with 10BDGD and 10BKDF-GAC cartridges.

Are cartridges included with the Housing Only option?

No. The Housing Only option does not include filter cartridges.

It is designed for customers who want to select their own compatible cartridges.

Which option should I choose for tank water?

Choose the Rainwater option.

It includes a 25-to-1 micron dual gradient sediment cartridge followed by a radial flow granular activated carbon cartridge.

Which option should I choose for town water?

Choose the Mains Water option.

It combines 25-to-1 micron sediment filtration with KDF/GAC treatment.

What cartridges are included with the Rainwater option?

The Rainwater configuration includes:

10BDGD-PA — Dual Gradient 25-to-1 Micron Sediment

10BRFGAC — Radial Flow Granular Activated Carbon

What cartridges are included with the Mains Water option?

The Mains Water configuration includes:

10BDGD — Dual Gradient 25-to-1 Micron Polyspun Sediment

10BKDF-GAC — KDF/GAC

What size cartridges does the system use?

The system uses 10" Jumbo / Big Blue format cartridges compatible with the Pentair 10BWH housings.

Can I choose my own cartridges?

Yes. Choose the Housing Only option if you want to create your own two-stage cartridge combination.

Is the system assembled?

Yes. The supplied description specifies an assembled whole-house filter system using two 10BWH housings with a stainless steel bracket, ball valve and spanner.

Does it include a mounting bracket?

Yes. A stainless steel bracket is included.

Does it include a housing spanner?

Yes. A housing spanner is supplied for servicing the filter housings.

Can I change the cartridges later?

Yes. The 10" Jumbo cartridges are replaceable, allowing you to maintain or change the filtration configuration without replacing the complete housing assembly.