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Refillable Cartriadges

Shop refillable filter cartridges for custom water treatment media and reusable filtration setups. These empty canisters can be filled with compatible carbon, resin, phosphate, or specialty media for a specific application. Compare cartridge size, cap and screen design, media compatibility, flow direction, housing fit, and service requirements before building or refreshing a filter.

Filters

O-Ring For HF45 Filter Housing - IFilters
Hydronix

O-Ring For HF45 Filter Housing

HF45-ORING
in stock

$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55

Replacement O-Ring for the Hydronix HF45 filter housings. Made from durable Buna-N material. This replacement O-Ring is made to be used with the Op...

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$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55
O-Ring For HF2, HF3 and HF4 Filter Housings - IFilters
Hydronix

O-Ring For HF2, HF3 and HF4 Filter Housings

HF2/3-ORING
in stock

$0.59 - $0.59
$0.59
$0.59 - $0.59
$0.59

Replacement O-Ring for the Hydronix HF2, HF3 and HF4 filter housings. These replacement O-Rings are made to be used with the Opaque or Clear HF2, H...

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$0.59 - $0.59
$0.59
$0.59 - $0.59
$0.59
O-Ring For HF5 Filter Housing - IFilters
Hydronix

O-Ring For HF5 Filter Housing

HF5-ORING
in stock
$1.13 - $1.13
$1.13
$1.13 - $1.13
$1.13

Replacement O-Ring for the Hydronix HF5 filter housings. Made from durable Buna-N material. This replacement O-Ring is made to be used with the Opa...

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$1.13 - $1.13
$1.13
$1.13 - $1.13
$1.13
Hydronix Clear Empty Standard Size Water Filter Cartridge Pre/Post Use 2.5 x 10
Hydronix

Hydronix Clear Empty Standard Size Water Filter Cartridge Pre/Post Use 2.5 x 10

EC-2510C
in stock
$7.23 - $7.23
$7.23
$7.23 - $7.23
$7.23

Hydronix empty cartridges can be used with carbon, resin, KDF or any other media. Made from high impact polystyrene to withstand continuous usage a...

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$7.23 - $7.23
$7.23
$7.23 - $7.23
$7.23
Hydronix Oring For MH03 Membrane Housing - IFilters
Hydronix

Hydronix Oring For MH03 Membrane Housing

MH03-ORING
in stock
$1.57 - $1.57
$1.57
$1.57 - $1.57
$1.57

Replacement O-Ring for the Hydronix MH03 Membrane Housings. Made from durable EPDM material. This O-Ring is for the housing unit and not the Cap. F...

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$1.57 - $1.57
$1.57
$1.57 - $1.57
$1.57
Hydronix Oring For MH03 Membrane Housing Cap - IFilters
Hydronix

Hydronix Oring For MH03 Membrane Housing Cap

MH03-CAPORING
in stock
$1.57 - $1.57
$1.57
$1.57 - $1.57
$1.57

Replacement O-Ring for the Hydronix MH03 Membrane Housings Cap. Made from durable EPDM material. This O-Ring is for use on the housing Cap. For the...

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$1.57 - $1.57
$1.57
$1.57 - $1.57
$1.57
Hydronix EC-4520W White Empty Water Filter Cartridge Durable Construction For Pre Post, Fits Standard Housings 4.5 x 20 - IFilters
Hydronix EC-4520W White Empty Water Filter Cartridge Durable Construction For Pre Post, Fits Standard Housings 4.5 x 20 - IFilters
Hydronix

Hydronix EC-4520W White Empty Water Filter Cartridge Durable Construction For Pre Post, Fits Standard Housings 4.5 x 20

EC-4520W
in stock
$23.95 - $23.95
$23.95
$23.95 - $23.95
$23.95

Hydronix empty cartridges can be used with carbon, resin, KDF or any other media. Made from high impact polystyrene to withstand continuous usage a...

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$23.95 - $23.95
$23.95
$23.95 - $23.95
$23.95
Hydronix EC-4510W White Empty Water Filter Cartridge Durable Construction For Pre Post, Fits Standard Housings 4.5 x 10
Hydronix

Hydronix EC-4510W White Empty Water Filter Cartridge Durable Construction For Pre Post, Fits Standard Housings 4.5 x 10

EC-4510W
in stock
$12.93 - $12.93
$12.93
$12.93 - $12.93
$12.93

Hydronix empty cartridges can be used with carbon, resin, KDF or any other media. Made from high impact polystyrene to withstand continuous usage a...

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$12.93 - $12.93
$12.93
$12.93 - $12.93
$12.93
Hydronix White Empty Standard Size Water Filter Cartridge Pre/Post Use 2.5 x 10
Hydronix

Hydronix White Empty Standard Size Water Filter Cartridge Pre/Post Use 2.5 x 10

EC-2510W
in stock
$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99

Hydronix empty cartridges can be used with carbon, resin, KDF or any other media. Made from high impact polystyrene to withstand continuous usage a...

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$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
White Empty Water Filter Cartridge For Pre or Post Use Durable 2.5" x 20" - IFilters
Hydronix

White Empty Water Filter Cartridge For Pre or Post Use Durable 2.5" x 20"

EC-2520W
in stock
$10.01 - $10.01
$10.01
$10.01 - $10.01
$10.01

Hydronix Empty Cartridges can be used with carbon, resin, KDF or any other media. Made from High Impact Polystyrene to withstand continuous usage a...

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$10.01 - $10.01
$10.01
$10.01 - $10.01
$10.01
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