Great Aquariums Start Here
1-800-566-3474
Live Chat Support
    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
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $175 ship FREE. Learn More
 
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
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 94
Hydor Koralia Nano/Slim-Skim Internal Protein Skimmer

Hydor Koralia Nano/Slim-Skim Internal Protein Skimmer

The HYDOR SLIM-SKIM NANO INTERNAL SKIMMER™ was developed for Nano and Mini Reef use and for aquariums up to 35 gallons. It is compact and easy to position with a magnet suction cup support. Includes a special grid for surface wat...

From $107.99
CPR Bak-Pak Protein Skimmer

CPR Bak-Pak Protein Skimmer

Cyclone BAK-PAK™ 2 Bio-Filter The Cyclone BAK-PAK™2 Bio-Filter is the second generation external, hang on the back, combination Protein Skimmer and Biological Filtration unit from CPR. The BAK-PAK™ 2, like the original, is...

From $138.99
CAD Lights Gen3 PLS-100 Pipeless Protein Skimmer

CAD Lights Gen3 PLS-100 Pipeless Protein Skimmer

"Think Less and Enjoy More" Have you ever wish to have an over-sized skimmer on a small tank? At only 4.75" X 4.75", The Gen-3 PLS-100 can fit into your Tiniest spaces. It is the perfect solution to aquariums with restricted ...

$174.99
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
NextReef NRS Aquarium Sumps

NextReef NRS Aquarium Sumps

Sumps by NextReef Systems are designed to be flexible and efficient - they`re the perfect core for any aqaurium filtration system. NextReef sumps are loaded with features, yet simple and spacious. Naturally, they`re constructed ...

From $180.49
Fluval External Canister Filters

Fluval External Canister Filters

The newly refined Fluval 06 series of aquarium canister filters with new more powerful motor adds extra conveniences to the powerful and flexible Fluval filtration line. Each Fluval Multi-Stage 06 Series Filter adds even more user...

From $135.99
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
NextReef MR1 Monster GFO and Carbon Filter Media Reactor

NextReef MR1 Monster GFO and Carbon Filter Media Reactor

NextReef MR1 Monster 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 contac...

$200.99
Berlin Sump (Sump Only)

Berlin Sump (Sump Only)

A sump for "Berlin" filtration system up to 125 gallons. This sump includes 3` x 1-1/4" tubing. Bigger internal baffle to accomodate other skimmer models. Removable baffle allowing a "refugium section" and/or increase in water vol...

From $163.99
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 $187.49
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
Reef Octopus BH-50 Multi-Mount Protein Skimmer

Reef Octopus BH-50 Multi-Mount Protein Skimmer

A small skimmer with all the great features usually only found in larger skimmers. Equipped with bubble diffuser, air silencer, solid mounting bracket, easy to use raiser pipe to control the internal water level in the skimmer and...

$124.99
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 $129.99
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
AquaC Remora Hang-On Protein Skimmer with Drain Fitting

AquaC Remora Hang-On Protein Skimmer with Drain Fitting

The revolutionary AquaC protein skimmers do not use venturis, downdraft tubes, or air pumps; they employ the patented "Spray Injection System." This innovation allows the protein skimmer to efficiently draw in much more air than a...

From $164.99
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...

$113.99
AquaC Nano Remora Hang-On Protein Skimmer w/ Drain Fitting

AquaC Nano Remora Hang-On Protein Skimmer w/ Drain Fitting

AquaC Nano Remora Hang-On Protein Skimmer w/ Drain Fitting A miniature version of the popular Remora hang-on skimmer. Uses half the power of the regular Remora. The NANO is designed for tanks between 5-25 gallons. This is the...

From $149.99
Berlin Sumps

Berlin Sumps

Berlin Sump - BS-1 Dimensions (L x W x H) : 23" x 12" x 14" BS-1: A sump for "Berlin" filtration system up to 125 gallons. This sump includes 3` x 1-1/4" tubing,100 micron filter sock, and foam block prefilter. This comes with ...

From $173.99
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
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 protein skimmers.

From $71.99
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 $114.99
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
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 $99.99
Korallin BioDenitrator Replacement Media

Korallin BioDenitrator Replacement Media

Korallin S-1502 Replacement Media

From $89.99
ASM Mini-G Protein Skimmer w/ Sicce Needle Wheel Pump

ASM Mini-G Protein Skimmer w/ Sicce Needle Wheel Pump

ASM protein skimmers deliver when other skimmers fail. ASM harnesses a patented technique of needle wheel technology. Built from top to bottom with high quality scratch resistant extruded PVC tubing and the injection molded plasti...

$139.49
26 - 50 of 94
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:
Win a $100 Gift Card Sign up to get our best deals, expert tips and a chance to win $100 to spend at Marine Depot!