Great Aquariums Start Here
1-800-566-3474
Live Chat Support
    Free Shipping
  • FREE Shipping ON $75+
  • 14-Day Low Price Guarantee
  • Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
FREE SHIPPING ON
ORDERS $75 & UP
99% of items we carry qualify for FREE SHIPPING in the contiguous United States if you spend $75 or more. Learn More
 
If you find a product we sell for a lower price at another online store, we will match their price to ensure you always pay the lowest amount when you shop with us. Learn More
 
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 2 pm EST ship the same day! Learn More
 
Search Results for ยป
Show: per page
Grid View Grid List View List
Sort by:
1 - 25 of 26
Marine Depot Fired Ceramic Square Frag Plugs

Marine Depot Fired Ceramic Square 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: 1" Square with 1/2" stem length

From $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 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 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
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 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 Large Fired Ceramic Circular Frag Plugs

Marine Depot Large Fired Ceramic Circular Frag Plugs

This is a fired ceramic disk that does not need to be soaked before using. They are perfect for zoanthid growout and the pin keeps the disk in place on eggcrate or your sand bed. Measurements: 1/1/4" Round with 1/2" stem length

From $4.99
Marine Depot Fired Ceramic Premium Frag Plugs - 13 Pack

Marine Depot Fired Ceramic Premium Frag Plugs - 13 Pack

This is a premium fired ceramic dish with mounting hole that does not need to be soaked before using. They are perfect for zoanthid growout and the pin keeps the disk in place on eggcrate or your sand bed.

$19.99
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 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 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
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 Logo Polo Shirt (Small)

Marine Depot Logo Polo Shirt (Small)

100% cotton pique, high quality, white polo shirt with navy blue trim on the collar and cuffs and the Marine Depot logo embroidered on the left chest.

$29.99
Marine Depot Bulk Deionization Resin

Marine Depot Bulk Deionization Resin

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

From $11.99
Marine Depot Large Fired Ceramic Frag Disks

Marine Depot Large Fired Ceramic Frag Disks

This is a fired ceramic disk that does not need to be soaked before using. No post means they are easy to re-position on egg crate or your frag rack. The larger size is great for grow-out of your favorite corals. Measurement: ...

From $9.99
Marine Depot Fired Ceramic Frag Platforms - 2 Pack

Marine Depot Fired Ceramic Frag Platforms - 2 Pack

Size 3" x 3". Ideal for sandbed soft coral grow out such as zoanthids or palythoas. Grow out disks can be easily removed and replaced for swapping. Fire ceramic material does not require soaking/rinsing before use.

$11.99
Standard Float Switch for Auto Top Off

Standard Float Switch for Auto Top Off

Auto Top Off Standard Float Switch Float Switch Only, bare wires. No Box

$10.99
1 - 25 of 26
Add to Cart or Notify Me
This item is temporarily unavailable but will be back in stock soon.


Item #
Price:
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.
Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

Notify Me
Just enter your email address below and we'll let you know when the product you are looking for becomes available!


Item Code:
Price:
Your Email:
WIN A HANG-ON SKIMMER! Sign up for hot deals, helpful videos, and a chance to win an AquaMaxx ConeS HOB Protein Skimmer