Great Aquariums Start Here
1-800-566-3474
    Free Shipping On $175+
  • FREE Shipping On $175+
  • 14-Day Low Price Guarantee
  • 14-Day Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
FREE Shipping on Orders Over $175
FREE Shipping on
Orders Over $175
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $175 ship FREE. Learn More
14-Day Low Price Guarantee
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you've purchased the item! Learn More
Same Day Shipping
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 6 pm EST ship the same day! Learn More
Search Results for Saltwater Aquarium Supplies > Filters
Show: per page
Grid View Grid List View List
Sort by:
326 - 348 of 348
Lifegard Aquatics 3 inch Clear Heater Cap Complete

Lifegard Aquatics 3 inch Clear Heater Cap Complete

3" Clear Heater Cap for Lifegard Aquatics Inline Heater Modules R175021

$27.99
Hydor Sintered Quartz Bio-Rings for Professional Canister Filter - 450 gram

Hydor Sintered Quartz Bio-Rings for Professional Canister Filter - 450 gram

Pro-Filter Sintered Quartz Bio-Rings for use with Hydor Professional Canister Filters - 450g Highly porous efficient sintered quartz Bio-Rings media is ideal for optimal biological filtration.

$10.99
Cobalt Aquatics EXT Canister Filter

Cobalt Aquatics EXT Canister Filter

The Cobalt Aquatics E-X-T aquarium canister filter is the most innovative canister available. Its unique inline pump allows complete flexibility on any aquarium, terrarium or vivarium setup. The innovative valve with 5/8” hose bar...

$131.99
AquaMaxx Replacement Base for ConeS CO-1 Protein Skimmer

AquaMaxx Replacement Base for ConeS CO-1 Protein Skimmer

Replacement Base for AquaMaxx ConeS CO-1 Protein Skimmer

$49.99
AquaMaxx ZEO Reactor Brightwell Aquatics NeoZeo Starter Kit

AquaMaxx ZEO Reactor Brightwell Aquatics NeoZeo Starter Kit

AquaMaxx Zeo Reactor w/ Brightwell Aquatics Media   1x AquaMaxx Zeo Reactor 1x Brightwell Aquatics Neo Zeo Zeolite Media for Reef 2.2 lbs (1000g) 1x Brightwell Aquatics MicroBacter7 - Compelete BioCulture for Mar...

From $189.99
Replacement Impeller for AquaMaxx Cone Series Protein Skimmers

Replacement Impeller for AquaMaxx Cone Series Protein Skimmers

Replacement Impeller for AquaMaxx Cone-2 Protein Skimmers

From $83.99
AquaC Urchin Pro-S In-Sump Protein Skimmer w/ Drain Fitting & Danner Supreme 5 Powerhead/Pump

AquaC Urchin Pro-S In-Sump Protein Skimmer w/ Drain Fitting & Danner Supreme 5 Powerhead/Pump

AquaC Urchin Pro-S In-Sump Protein Skimmer Information NEW FOR 2012! The Urchin Pro-S features a redesigned High-Flow Spray Injector that increases air and water flow. The new injector produces smaller air bubbles that boos...

$279.99
Optional Gate Valve for Precision Marine Bullet 1 Protein Skimmer

Optional Gate Valve for Precision Marine Bullet 1 Protein Skimmer

Bullet 1 Optional Gate Valve (1.5"), for fine tuning. Strongly recommended.

$49.99
Filter Sponge For ViaAqua 650/750 Canister Filter

Filter Sponge For ViaAqua 650/750 Canister Filter

Filter Sponge Coarse L (2PK) for ViaAqua 650 and 750 Canister filter.

$10.99
Lifegard Aquatics Cartridge Plug for AF94/93

Lifegard Aquatics Cartridge Plug for AF94/93

Cartridge Plug for Lifegard Aquatics AF-94/93 Mechanical/Chemical Filter

$4.49
Eheim Cartridge w/ Activated Carbon for 2012

Eheim Cartridge w/ Activated Carbon for 2012

Cartridge with Activated Carbon for Eheim Internal Filter 2012. Open-cell foam cartridge, fully impregnated with special activated carbon, pH-neutral. Absorbs dissolved harmful substances, colourants, as well as residues of medici...

$27.99
Eheim Cartridge w/ Activated Carbon for 2008

Eheim Cartridge w/ Activated Carbon for 2008

Cartridge with Activated Carbon for Eheim Internal Filter 2008. Open-cell foam cartridge, fully impregnated with special activated carbon, pH-neutral. Absorbs dissolved harmful substances, colourants, as well as residues of medici...

$24.49
Nu-Clear Canister Filter Replacement Lid

Nu-Clear Canister Filter Replacement Lid

Nu-Clear Canister Filter Replacement Filter Lid for all Nu-Clear Canister Filters

$18.99
AquaMaxx Fluidized GFO and Carbon Filter Media Reactor XL w/ AquaMaxx Carbon One

AquaMaxx Fluidized GFO and Carbon Filter Media Reactor XL w/ AquaMaxx Carbon One

AquaMaxx Fluidized Media Reactors AquaMaxx Fluidized Media Reactors are multi-purpose aquarium water filters specially designed for use in marine and reef aquaria. Insert your media of choice to help eliminate organic pollutant...

$119.99
AquaMaxx Replacement Cup for Cone In-Sump Protein Skimmer

AquaMaxx Replacement Cup for Cone In-Sump Protein Skimmer

Replacement Cup for AquaMaxx Cone 2 Skimmer

From $61.99
AquaMaxx Replacement 10mm Tubing for Protein Skimmers

AquaMaxx Replacement 10mm Tubing for Protein Skimmers

Replacement tubing for AquaMaxx Protein Skimmers Used as replacement collection cup drain tubing for AquaMaxx HOB-1 or CO-1 Skimmer. Or, as replacement venturi tubing for Cone 2-6, ConeS CO-2/CO-3 or EM300-600 protein skimmers...

$19.99
AquaMaxx AM350 In-Sump Protein Skimmer

AquaMaxx AM350 In-Sump Protein Skimmer

AquaMaxx AM-S Series Protein Skimmer AquaMaxx in-sump protein skimmers are built using exceptional cell-cast acrylic, bubble plates and easily adjustable riser tubes. They are rated for aquariums up to 550 gallons yet are thin...

$599.99 $539.99
EHEIM PUMP FOR 2003

EHEIM PUMP FOR 2003

Replacement pump for Eheim 2003 Aquaboss filter

$26.39
NextReef NXS1 Recirculating Protein Skimmer

NextReef NXS1 Recirculating Protein Skimmer

NextReef NXS1 skimmers feature a fully-sealed, recirculating design, perfect for internal or external use. That means they work as well in your sump as they do sitting next to it. It also means that they`re not picky about water...

From $625.49
Reef Octopus Regal 170EXT Recirculating Protein Skimmer

Reef Octopus Regal 170EXT Recirculating Protein Skimmer

The new and innovative Reef Octopus Regal 170-EXT recirculating protein skimmer supplies powerful filtration for aquariums up to 300 gallons where absolute control is a necessary. The Reef Octopus Regal 170-EXT is constructed of h...

$659.99
AquaMaxx Replacement Shark 5.0 Pump for ConeS CO-5, EM500 and Cone 5 Protein Skimmers

AquaMaxx Replacement Shark 5.0 Pump for ConeS CO-5, EM500 and Cone 5 Protein Skimmers

Replacment Shark 5.0 Pump for AquaMaxx ConeS CO-5, EM500 and Cone 5 Protein Skimmers

$259.99
AquaMaxx Replacement Inlet Venturi for ConeS Protein Skimmers

AquaMaxx Replacement Inlet Venturi for ConeS Protein Skimmers

Replacement AquaMaxx Inlet Venturi for ConeS CO-1 Protein Skimmer

From $21.99
AquaMaxx Replacement Inlet Venturi for EM Series Protein Skimmers

AquaMaxx Replacement Inlet Venturi for EM Series Protein Skimmers

Replacement AquaMaxx Inlet Venturi for EM200 Protein Skimmer

From $23.99
326 - 348 of 348
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.

Your Email:
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:
Marine Depot Newsletter Signup
Aquariums, News & Culture
Join 100,000+ readers who receive weekly tips, videos, deals and giveaways.