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Marine Depot Clear Refillable 10-Inch Cartridge for DI Resin

Marine Depot Clear Refillable 10-Inch Cartridge for DI Resin

Standard 10-Inch refillable cartridge for DI Resin with Twist-Off Cap A great way to save money by using a refillable cartridge. Simply discard the DI resin once exhausted and new resin. Be sure to make sure new resin is tightly...

$7.99
Marine Depot Fired Ceramic Square Frag Plugs - 25 Pack

Marine Depot Fired Ceramic Square Frag Plugs - 25 Pack

This is a fired ceramic disk that does not need to be soaked before using. Plugs fit into eggcrate and are excellent for frag grow out. Measurements: 1" Square with 1/2" stem length

$9.99
Marine Depot Fired Ceramic Micro Plugs

Marine Depot Fired Ceramic Micro Plugs

This is a fired ceramic plug that does not need to be soaked before using. Plugs fit into eggcrate and most frag racks and are excellent for frag grow out. Great for zoanthids, palythoas and smaller SPS frags!

From $6.49
Marine Depot Chloramine-X GAC Carbon Filter

Marine Depot Chloramine-X GAC Carbon Filter

Our best carbon filter for Chloramine removal! More than 20 percent of municipalities use chloramine for water treatment instead of chlorine. Standard carbon block filters only treats for chlorine and will allow ammonia and o...

$15.99
Marine Depot KleanWater Basic RO System - 100 GPD

Marine Depot KleanWater Basic RO System - 100 GPD

Made in the USA! We have assembled a high quality yet economical water purifying system that turns ordinary tap water into ultra-pure water for your aquarium or sparkling, great-tasting healthy drinking water for you and your...

$149.99
Marine Depot KleanWater 4-Stage Economy RO/DI System - 100 GPD

Marine Depot KleanWater 4-Stage Economy RO/DI System - 100 GPD

Made in the USA! We have assembled a high quality yet economical water purifying system that turns ordinary tap water into ultra-pure, zero-TDS, water for your aquarium. Harmful impurities such as nitrates, phosphates, silica...

$149.99
Marine Depot 0.5 Micron Sediment Replacement Filter

Marine Depot 0.5 Micron Sediment Replacement Filter

Please note that these replacement cartridges are interchangeable with Marine Depot`s, Kent Marine`s, and SpectraPure`s RO or RO/DI units. We have researched the best replacement cartridges among these three manufacturer...

$12.99
0.5 Micron Carbon Block Replacement Filter for Marine Depot, SpectraPure & Kent Marine

0.5 Micron Carbon Block Replacement Filter for Marine Depot, SpectraPure & Kent Marine

1/2 micron carbon block prefilter - highly recommended replacement filter highly effective at reducing unwanted taste, odor, chlorine, fine sediments and pesticides. nominal 0.5-micron rating effective at reducing Cry...

$13.49
5 Micron Carbon Block Replacement Filter for Marine Depot and SpectraPure

5 Micron Carbon Block Replacement Filter for Marine Depot and SpectraPure

5 micron carbon block prefilter nominal 5-micron rating high dirt-holding capacity maximizes utilization of the carbon block high porosity design helps prevent the cartridge from plugging before its adsorption capacity is ...

$10.49
Marine Depot Inline Carbon Filter - 1/4 inch FPT x 1/4 inch FPT

Marine Depot Inline Carbon Filter - 1/4 inch FPT x 1/4 inch FPT

Inline carbon filter with 1/4" FPT fittings on both ends. Designed to be used as a pre R/O filter . Granular activated carbon filter used to reduce taste, odor and chlorine taste and odor. Great for ice makers, refrigerators, bev...

$17.99
Marine Depot Color Indicating Mixed Bed DI Cartridge

Marine Depot Color Indicating Mixed Bed DI Cartridge

Deionization cartridge - Color Change Please note that these replacement cartridges are interchangeable with Marine Depot`s, Kent Marine`s, and SpectraPure`s RO or RO/DI units. We have researched the best replacement ca...

$22.99
Marine Depot RO Replacement Filter Kit

Marine Depot RO Replacement Filter Kit

Kit Includes: 1 x 1 micron dual density gradient sediment filter 1 x 1/2 micron carbon block prefilter 1 micron dual density gradient sediment filter is highly recommended due to longer life and cost effectiveness. Manufactured ...

$17.49
Marine Depot RO/DI Replacement Filter Kit

Marine Depot RO/DI Replacement Filter Kit

Kit Includes: 1 x 1 micron dual density gradient sediment filter 1 x 1/2 micron carbon block prefilter 1 x Color Indicating Mixed Bed DI Cartridge 1 micron dual density gradient sediment filter is highly recommended due to longer...

$40.49
Marine Depot Chloramine Removal Carbon Block Filter Cartridge

Marine Depot Chloramine Removal Carbon Block Filter Cartridge

More than 20 percent of municipalities use chloramine for water treatment instead of chlorine. Standard carbon block filters only treats for chlorine and will allow ammonia and other impurities to reach your aquarium. A chloramine...

$18.99
Marine Depot Overflow Box

Marine Depot Overflow Box

High quality and economical hang-on overflow box allows you to easily add a sump, refugium or wet/dry filter to your system. U-tube design allows for easy and convenient installation. Adjustable pre-filter hight allows you to adju...

From $49.99
Float Switch w/ Magnetic Mounting Bracket for Auto Top Off

Float Switch w/ Magnetic Mounting Bracket for Auto Top Off

Marine Depot Float Switch with magnetic mounting Bracket. The float sensor is enclosed in a protective acrylic enclosure to prevent snails or debris from interfering with the sensor. ATO tube holder for tubing up to 3/8" (outside ...

$24.99
Marine Depot Auto Top Off System w/ Pump and  Magnetic Sensors

Marine Depot Auto Top Off System w/ Pump and Magnetic Sensors

Easy-to-use auto top off system that is ready to go out of the box! Includes one float sensor with magnetic mounting bracket and top-off pump. The float sensor is enclosed in a protective acrylic enclosure to prevent snails or...

From $79.99
Marine Depot Ceramic Coral Frag Plug with Rock Base - 2 Pack

Marine Depot Ceramic Coral Frag Plug with Rock Base - 2 Pack

Size 3x3" ideal for sandbed soft coral growout disks can be easily removed and replaced for swapping.

$11.99
Marine Depot Fired Ceramic Frag Station

Marine Depot Fired Ceramic Frag Station

This is a fired ceramic disk that does not need to be soaked before using. They are excellent for zoanthid growout and color up nicely in your tank.

From $17.99
Mind of a Reefer - Limited Edition T-Shirt (Small)

Mind of a Reefer - Limited Edition T-Shirt (Small)

High-quality, heavyweight 100% cotton grey short sleeve T-shirt. "Mind of a Reefer" graphic printed on chest with MarineDepot.com logo.

$19.99
Marine Depot Small Fired Ceramic Circular Frag Plugs

Marine Depot Small Fired Ceramic Circular Frag Plugs

This is a fired ceramic disk that does not need to be soaked before using. Plugs fit into eggcrate and are excellent for frag grow out. Measurements: 3/4" Round with 1/2" stem length

From $6.99
Marine Depot Bulk Color-Changing Deionization Resin

Marine Depot Bulk Color-Changing Deionization Resin

Bulk Color-Change Deionization Resin. Enough to fill one refillable DI cartridge. * Make sure to pack the cartridge tightly to avoid channeling / bypass.

From $12.99
Marine Depot Hi-Silicate Removal TFC Replacement Membrane

Marine Depot Hi-Silicate Removal TFC Replacement Membrane

The key component for any reverse osmosis unit is its membrane. The membrane will determine the type of contaminants removed and how much water the unit will produce. Our Captive Purity Hi-S (High Silicate) membranes are the gold ...

From $31.99
Be A Good Host Ice Grey - Limited Edition T-Shirt

Be A Good Host Ice Grey - Limited Edition T-Shirt

High-quality, heavyweight 100% cotton short sleeve T-shirt. "Be A Good Host" graphic printed on chest with small MarineDepot.com logo.

From $19.99
Marine Depot Aquarium Refractometer

Marine Depot Aquarium Refractometer

The Refractometer is a must have for all aquarium hobbyists. The proper salinity is crucial for the survival and health of your fish and corals . This high quality refractometer is extremely accurate and easy to use and calibr...

$49.99
1 - 25 of 39
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