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:
26 - 50 of 69
Eheim ECCO Easy External Canister Filter

Eheim ECCO Easy External Canister Filter

Energy saving, powerful, extremely efficient, and convenient. With only 5 Watt power consumption and a pump output of 130 gph, the Ecco Pro is one of the most energy efficient filters on the market. Compared to similar filters it...

From $129.99
Hydor Professional Canister Filter

Hydor Professional Canister Filter

Hydor Professional Canister Filters are quiet and efficient canister filters that are great for both freshwater and saltwater aquariums. These filters feature modern Japanese-Inspired design with compact footprints and large filtr...

From $99.99
Two Little Fishies Phosban Reactor 550 Kit w/ Cobalt Aquatics MJ1200 Water Pump

Two Little Fishies Phosban Reactor 550 Kit w/ Cobalt Aquatics MJ1200 Water Pump

Kit Includes: Two Little Fishies GFO Phosban Reactor 550 Cobalt Aquatics MJ1200 Water Pump 1/2 inch Clear Flexible Vinyl Tubing x 6ft Plastic Hose Clamp 1/2 inch x 2 Two Little Fishies GFO Phosban Reactor 550 The Ph...

$110.99
CAD Lights NR-1 Pro All-In-One Media Reactor

CAD Lights NR-1 Pro All-In-One Media Reactor

NR-1 Pro All-In-One Media reactor (Bio-pellets, GFO, Carbon) Our newly released NR-1 Pro nano media reactor packs all the latest and best features that our engineers have come up with. Building on the breakthrough of the orig...

$99.99
NextReef MR1 XL GFO and Carbon Filter Media Reactor

NextReef MR1 XL GFO and Carbon Filter Media Reactor

NextReef MR1 XL Media Reactor NextReef Reactors Loom Large Over the Competition! The MR1 families of Media/Substrate Reactors feature a massive 4-inch reaction chamber. The extra wide design maximizes water to media contact, ...

$110.99
Eshopps Nano Protein Skimmer

Eshopps Nano Protein Skimmer

Eshopps Nano skimmer for 10-35 gallon aquariums The new Eshopps Nano skimmer has a compact footprint measuring 2.25" x 4.5" (11.5" tall). Made to fit in the filter chamber of many all-in-one style aquariums. The skimmer can als...

$119.99
Reef Octopus Advanced Media Reactors

Reef Octopus Advanced Media Reactors

Advanced Hobbyist Media Filter Our professional line media reactors are not only built to last but have the most very best filtration protection available. The two cone strainers on each end of the reactor prevents large cour...

From $116.99
Nu-Clear Canister Filters

Nu-Clear Canister Filters

Nu-Clear 500 Series Modular Canister Filters provide the ultimate in aquatic life support systems for consumer and commercial fresh and salt water aquariums, fountains, or ponds. With several mechanical, chemical and biological op...

From $121.19
AquaC Auto-Waste Container

AquaC Auto-Waste Container

The new Aqua C EV Series skimmers can be operated with these auto-waste containers, available in 2.5 liter (5" x 10") and 5 liter (6" x 12") sizes. Unlike other brands, these waste jugs feature AquaC`s Twist-Lock flanges with...

From $79.99
Buy an Innovative Marine Minimax All-In-One Desktop Media Reactor and get AquaMaxx Carbon One - 2 Quart FREE

Buy an Innovative Marine Minimax All-In-One Desktop Media Reactor and get AquaMaxx Carbon One - 2 Quart FREE

Buy an Innovative Marine Minimax All-In-One Desktop Media Reactor and get AquaMaxx Carbon One - 2 Quart FREE Innovative Marine MiniMax All-In-One Media Reactor - DeskTop - Information If you desire the highest water qualit...

$98.99
JBJ Reaction 4-Stage Canister Filter + UV

JBJ Reaction 4-Stage Canister Filter + UV

REACTION 4-STAGE Mechanical + Chemical + Biological + UV Sterilization Reaction 4 stage canisters are the latest innovation in high capacity filtration systems. This revolutionary canister filter incorporates high media storing...

From $133.99
Korallin BioDenitrator Replacement Media

Korallin BioDenitrator Replacement Media

Korallin S-1502 Replacement Media

From $89.99
Tunze Comline Streamfilter 3163

Tunze Comline Streamfilter 3163

The new Tunze Comline® filters opens the way for compact aquarium components designed for internal operation, are ultra-functional and are highly-sophisticated. The system creates a natural atmosphere in the aquarium at a minimum...

$85.49
Red Sea Prizm Hang-on Protein Skimmer

Red Sea Prizm Hang-on Protein Skimmer

The development of the Prizm line of protein skimmers represents one of the most significant technological breakthroughs in protein extraction in decades. Utilizing an advanced new method of mixing the water and air and the develo...

From $94.99
Coralife Super Skimmer Needle Wheel

Coralife Super Skimmer Needle Wheel

NEEDLE-WHEEL SYSTEM TECHNOLOGY - PUMP INCLUDED Dual Application System: Hang-on Tank Mount or Sump Hook-up Easy-twist Collection Cup Water-level Adjustment Dial Bubble-production Diffuser High-grade acrylic const...

From $125.99
Nu-Clear Model 522 Replacement Canister Filter Cartridge, 100 Micron, 18 sq. ft.

Nu-Clear Model 522 Replacement Canister Filter Cartridge, 100 Micron, 18 sq. ft.

Nu-Clear Canister Replacement Pleated Filter Cartridge 18 sq. ft. 100 Micron

$71.99
NextReef MR1 Filter Media Reactor Kits w/ Pump

NextReef MR1 Filter Media Reactor Kits w/ Pump

Kit Includes: NextReef MR1 Filter Media Reactor Cobalt Aquatics MJ600 Multi-Purpose Powerhead/Pump 1/2 inch Clear Flexible Vinyl Tubing x 6ft Plastic Hose Clamp 1/2 inch x 2 Two Little Fishies Ball Valve w/ Hose Barbs for ...

From $125.99
CAD Lights PLS-50 Elite Nano Pipeless Protein skimmer

CAD Lights PLS-50 Elite Nano Pipeless Protein skimmer

The PLS-50 Elite from CAD Lights (Works for All-In-One filters, sumps or directly In-Tank). Welcome to the cutting edge of protein skimming! Building on the incredible success of the original PLS-50, CAD Lights set forth to refi...

$134.99
Tunze Comline Filter 3162

Tunze Comline Filter 3162

The new Tunze Comline® filters opens the way for compact aquarium components designed for internal operation, are ultra-functional and are highly-sophisticated. The system creates a natural atmosphere in the aquarium at a minimum...

$79.49
Lifegard Aquatics FB-300 Fluidized Bed Filter

Lifegard Aquatics FB-300 Fluidized Bed Filter

Due to its unique shape, the Lifegard Fluidized Bed Filter is an extremely efficient, high capacity "biological" filter. Aquatic organisms excrete toxic ammonia as a metabolic waste product with additional ammonia produced as food...

$66.99
Red Sea C-Skim 1800/1200 Protein Skimmer Replacement Aspiration Pump

Red Sea C-Skim 1800/1200 Protein Skimmer Replacement Aspiration Pump

This pump is the OEM replacement for the C-Skim 1800 and an upgrade for the C-Skim 1200.

$129.99
Replacement Needle Wheel Impeller for AquaMaxx EM-Series, Cone & ConeS Protein Skimmers

Replacement Needle Wheel Impeller for AquaMaxx EM-Series, Cone & ConeS Protein Skimmers

Replacement needle wheel impeller for AquaMaxx EM100, CO-1, and ConeS HOB protein skimmers.

From $71.99
Marine Depot Media Reactor for GFO and Carbon w/ Cobalt Aquatics MJ1200 Pump

Marine Depot Media Reactor for GFO and Carbon w/ Cobalt Aquatics MJ1200 Pump

Marine Depot Single Media Reactor for GFO or Carbon Finally, an easy-to-use media reactor that is both economical and durable! Great for use with GFO (granular ferrous oxide), activated carbon, biological media or most typ...

From $86.99
Replacement Pump for AquaMaxx EM-Series Protein Skimmers

Replacement Pump for AquaMaxx EM-Series Protein Skimmers

Replacement Pump w/ needle-wheel for AquaMaxx EM100, CO-1 & ConeS-HOB Protein Skimmer. Shark 1.5 skimmer Pump

From $133.99
AquaMaxx BioMaxx BioPellet Reactor w/ AquaMaxx BioPellets

AquaMaxx BioMaxx BioPellet Reactor w/ AquaMaxx BioPellets

AquaMaxx BioMaxx BioPellet Reactor Controlling nutrients inside our aquariums is one of the keys to preventing nuisance algae growth. The AquaMaxx BioMaxx BioPellet Reactor is a finely-tuned fluidized filter designed to help ho...

From $109.99
26 - 50 of 69
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.