10" Jumbo KDF/GAC Water Filter Cartridge

Improve water quality with a 10" Jumbo KDF/GAC water filter cartridge that combines granular activated coconut shell carbon with KDF media in one cartridge.

The GAC media helps reduce chlorine, unpleasant taste and odour, while the KDF media works alongside the carbon to support cartridge performance.

Choose Value Waimana for straightforward KDF/GAC filtration with polypropylene sediment filtration pads at each end, or Premium Pentair Pentek for high-performance granular activated coconut shell carbon, KDF media designed to inhibit scale buildup, and a dedicated 5 micron spun-bonded polypropylene post-filter.

Both cartridges measure 10" × 4½" and are designed for compatible 10" Jumbo / Big Blue water filter housings.

Product Options

Value — Waimana 10GAC/KDF

The Waimana 10GAC/KDF combines KDF media with premium-quality coconut shell granular activated carbon in a 10" × 4½" Jumbo cartridge, rated at 5 micron.

The activated carbon helps reduce chlorine, unpleasant taste and odour, while the KDF media helps prolong the life and increase the effectiveness of the carbon filtration media.

The cartridge also incorporates polypropylene sediment filtration pads at each end, providing additional sediment filtration around the KDF/GAC media.

Choose Value for dependable everyday KDF/GAC filtration at a lower price point.

Premium — Pentair Pentek 10BKDF-GAC

The Pentair Pentek 10BKDF-GAC is a premium 10" × 4½" KDF/GAC purifier cartridge designed for high-capacity chlorine, taste and odour reduction.

Part of the Pentair Pentek DBC Series, the cartridge combines high-performance granular activated coconut shell carbon with KDF media designed to inhibit scale buildup within the filter that can decrease cartridge life.

It also incorporates a 5 micron spun-bonded polypropylene post-sediment element for additional sediment filtration and increased dirt-holding capacity.

The Premium Pentair is particularly well suited to higher-capacity applications and water supplies where lime and scale buildup within the filter are concerns.

Why Choose This Water Filter Cartridge?

• KDF + GAC filtration — combines two treatment media within one cartridge.
• Chlorine reduction — both options reduce chlorine as water passes through the carbon media.
• Taste and odour improvement — coconut shell activated carbon helps improve common taste and odour issues.
• 10" × 4½" Jumbo format — both options fit compatible 10" Jumbo / Big Blue housings.
• Coconut shell activated carbon — used in both Value and Premium cartridges.
• Sediment filtration included — Waimana uses polypropylene filtration pads, while Pentair uses a dedicated 5 micron post-filter.
• Two treatment levels — choose Value for straightforward KDF/GAC filtration or Premium for additional scale-control and post-filtration features.
• Premium scale control — Pentair's KDF media inhibits scale buildup within the cartridge.
• Premium 5 micron post-filtration — provides additional sediment filtration and increased dirt-holding capacity.

How It Works

A KDF/GAC cartridge combines KDF media with GAC — Granular Activated Carbon.

As water travels through the cartridge, the granular activated coconut shell carbon provides adsorption treatment for chlorine, unpleasant taste and odour.

The KDF media works alongside the carbon.

In the Waimana 10GAC/KDF, the KDF helps prolong the life and increase the effectiveness of the carbon filtration media.

In the Pentair 10BKDF-GAC, the KDF media is used to inhibit scale buildup within the cartridge, helping prevent scale accumulation from decreasing cartridge life.

The Pentair cartridge then adds a 5 micron spun-bonded polypropylene post-filter, providing an additional sediment-filtration stage and increased dirt-holding capacity.

Best Suited For

This 10" Jumbo KDF/GAC water filter cartridge is well suited to:

• Mains-water filtration
• Chlorine reduction
• Taste and odour treatment
• Residential water filtration
• Whole-house filtration systems
• 10" Jumbo / Big Blue filter housings
• Multi-stage water filtration systems
• Applications requiring KDF and GAC in one cartridge
• Reverse-osmosis prefiltration where compatible
• General water-quality improvement
• Higher-capacity filtration applications

The Premium Pentair is particularly useful where lime and scale buildup within the filter is a concern.

Key Specifications

Value vs Premium — Which Should I Choose?

Choose Value Waimana if you want:

• KDF/GAC filtration
• Coconut shell activated carbon
• Chlorine reduction
• Taste and odour improvement
• Polypropylene sediment filtration pads
• KDF to help prolong carbon life
• KDF to increase carbon effectiveness
• 10" × 4½" Jumbo sizing
• A practical, cost-effective replacement cartridge

For straightforward residential filtration, the Waimana 10GAC/KDF provides the core benefits of KDF and granular activated carbon without paying for the Premium cartridge's additional post-filter and scale-control design.

Choose Premium Pentair if you want:

• High-performance granular activated coconut shell carbon
• KDF media designed to inhibit scale buildup
• 5 micron post-sediment filtration
• Increased dirt-holding capacity
• High-capacity chlorine taste and odour reduction
• 10" × 4½" Jumbo sizing
• Better suitability where lime and scale buildup within the filter is a concern
• Pentair Pentek DBC Series construction

The main reason to choose Premium is its combination of high-performance GAC, scale-control functionality and dedicated 5 micron post-filtration.

GAC vs Carbon Block — What's the Difference?

These cartridges use GAC — Granular Activated Carbon rather than a solid carbon block.

GAC contains loose activated carbon granules and is less dense than compressed carbon-block media.

This construction allows the cartridge to combine granular coconut shell carbon with KDF media in one treatment cartridge.

If your priority is chlorine, taste and odour treatment combined with the additional benefits of KDF media, a KDF/GAC cartridge is a practical option.

Installation

This cartridge is designed for use in a compatible 10" Jumbo / Big Blue water filter housing.

Both Value and Premium options measure 10" × 4½".

To replace the cartridge:

1. Turn off the water supply.
2. Release pressure from the filter housing.
3. Remove the filter housing sump.
4. Remove the existing cartridge.
5. Clean the housing if required.
6. Check that the O-ring is clean and seated correctly.
7. Insert the new KDF/GAC cartridge.
8. Reassemble the housing.
9. Slowly restore water pressure.
10. Check the housing carefully for leaks.
11. Flush the new cartridge before normal use.

Maintenance

Cartridge life depends on:

• Incoming water quality
• Water usage
• Chlorine levels
• Sediment loading
• Scale conditions
• System flow

Replace the cartridge when chlorine taste or odour begins to return, treatment performance noticeably declines, or water flow becomes excessively restricted.

What's Included

1 × 10" Jumbo KDF/GAC Water Filter Cartridge

Choose from:

Value — Waimana Water 10GAC/KDF

or

Premium — Pentair Pentek 10BKDF-GAC

Both options measure 10" × 4½".

Frequently Asked Questions

What does a KDF/GAC water filter do?

A KDF/GAC cartridge combines granular activated carbon with KDF media.

The activated carbon reduces chlorine and improves unpleasant taste and odour, while the KDF media works alongside the carbon to support cartridge performance.

What does GAC mean?

GAC stands for Granular Activated Carbon.

Unlike a compressed carbon block, GAC consists of loose activated carbon granules.

Both options in this listing use coconut shell activated carbon.

What does the KDF do?

Its specific role differs between the two cartridge designs.

In the Waimana 10GAC/KDF, KDF helps prolong carbon life and increase the effectiveness of the carbon filter.

In the Pentair 10BKDF-GAC, the KDF media is designed to inhibit scale buildup within the filter that can otherwise decrease cartridge life.

Does it reduce chlorine?

Yes. Both options are designed for chlorine reduction.

Does it help with taste and odour?

Yes. Both cartridges use granular activated coconut shell carbon to help reduce unpleasant taste and odour.

What's the difference between Value and Premium?

The Value Waimana 10GAC/KDF combines KDF, coconut shell activated carbon and polypropylene sediment filtration pads.

The Premium Pentair 10BKDF-GAC combines high-performance granular activated coconut shell carbon with KDF media designed to inhibit scale buildup, plus a dedicated 5 micron spun-bonded polypropylene post-filter.

Does the Waimana filter sediment?

Yes. The Waimana cartridge incorporates polypropylene sediment filtration pads at each end.

Does the Pentair filter sediment?

Yes. The Pentair incorporates a 5 micron spun-bonded polypropylene post-sediment element.

This provides additional sediment filtration and increased dirt-holding capacity.

Which option should I choose for scale-prone water?

Choose the Premium Pentair 10BKDF-GAC where lime and scale buildup within the cartridge is a concern.

Its KDF media is specifically designed to inhibit scale buildup that can decrease cartridge life.

Is this a carbon block filter?

No. Both options use granular activated carbon (GAC) rather than a compressed carbon block.

Are both cartridges the same size?

Yes. Both the Waimana 10GAC/KDF and Pentair 10BKDF-GAC measure 10" × 4½".

They are 10" Jumbo / Big Blue-format cartridges.

Will this fit my 10" Jumbo housing?

Both options are designed for compatible 10" Jumbo / Big Blue water filter housings.

The cartridge dimensions are 10" × 4½".