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 Saltwater Aquarium Supplies > Filters
Show: per page
Grid View Grid List View List
Sort by:
1 - 25 of 399
AquaMaxx Replacement Cup AM & EM Series In-Sump Protein Skimmer

AquaMaxx Replacement Cup AM & EM Series In-Sump Protein Skimmer

Replacement Cup for AquaMaxx AM100 & EM100 Protein Skimmers

From $49.99
Berlin Sump Filter Sock 100 Micron

Berlin Sump Filter Sock 100 Micron

Filter sock for Berlin filtration system. Can be used with the BS-1 sump, BS-2 sump or the Berlin Hang-On Acrylic mounts. 100 micron (smaller pore size, filters out more fine particulates). Inner Diameter: 3-9/16" Outer Diameter:...

From $8.99
Venturi for ASM Protein Skimmers

Venturi for ASM Protein Skimmers

Replacement Venturi for ASM Mini-G Protein Skimmer

From $14.49
ASM Protein Skimmer Replacement Pumps

ASM Protein Skimmer Replacement Pumps

Replacement pump for Mini-G SK200 Includes: Pump Needlewheel impeller Venturi Silicone airline tubing

From $51.49
AquaMaxx HOB-1 Hang-On-Back Protein Skimmer

AquaMaxx HOB-1 Hang-On-Back Protein Skimmer

*New Upgrades - Current models include an upgraded bubble plate with conical diffusers, re-designed hang-on bracket, and a larger collection cup as shown in the product photos. The AquaMaxx Hang on Back Series I (HOB-1) p...

$230.99
Two Little Fishies GFO Phosban Reactor 150

Two Little Fishies GFO Phosban Reactor 150

The Phosban Reactor 150™ has become a staple amongst most aquarists who keep SPS corals. So much so that you often see Phosban used interchangeably with the term GFO or Granular Ferric Oxide. Includes ball valve for regulating flo...

$52.99
Coralife BioCube Replacement Filter Cartridge - 2pk

Coralife BioCube Replacement Filter Cartridge - 2pk

Replaceable two-stage filter cartridge fits any size BioCube BioCube Aquariums include a sophisticated filtration system with a two-stage disposable cartridge that provides both mechanical and chemical filtration for clear, deb...

$7.99
AquaMaxx Replacement Collection Cup for ConeS Q-Series In-Sump Protein Skimmer

AquaMaxx Replacement Collection Cup for ConeS Q-Series In-Sump Protein Skimmer

Replacement collection cup for AquaMaxx Q-2 Protein skimmer.

From $89.99
API Crystal Bio-Chem Zorb Cartridge for SuperClean 10 Internal Power Filter (2/pk)

API Crystal Bio-Chem Zorb Cartridge for SuperClean 10 Internal Power Filter (2/pk)

Replacement Crystal Bio-Chem Zorb Cartridge for API SuperClean 10 Internal Power Filter - 2 Pack *Makes water clean and clear Features: Superior resins and activated carbon Removes debris, colors and odors Densely fil...

$3.49
AquaMaxx FR-SE GFO Carbon and Biopellet Hang-On Filter Media Reactor

AquaMaxx FR-SE GFO Carbon and Biopellet Hang-On Filter Media Reactor

AquaMaxx FR-SE External Media Reactor is a great multi-purpose aquarium water filters specially designed for use in smaller marine and reef aquaria. Insert your media of choice to help eliminate organic pollutants, odors, discolor...

$57.99
ASM replacement Needle Wheel Impellers

ASM replacement Needle Wheel Impellers

Replacement Needle Wheel Impeller for the G-300 used on the ASM Mini-G skimmer

From $20.99
AquaC O-Ring

AquaC O-Ring

Replacement O-Ring for AquaC Remora/Urchin skimmer

From $1.99
Two Little Fishies Reactor 150 Replacement Foam Disks (2-Pieces) for GFO Phosban Reactor

Two Little Fishies Reactor 150 Replacement Foam Disks (2-Pieces) for GFO Phosban Reactor

Two replacement foam disks for TwoLittleFishies Phosban Reactor 150

$2.99
AquaMaxx Fluidized GFO and Carbon Filter Media Reactor -  Standard

AquaMaxx Fluidized GFO and Carbon Filter Media Reactor - Standard

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 polluta...

$79.99
Two Little Fishies NPX Screen for 150 or 550 PhosBan Reactor

Two Little Fishies NPX Screen for 150 or 550 PhosBan Reactor

PhosBan Reactor NPX Screen - (pack with 2 screens) The NPX Screen prevents NPX Biopellets or other pelletized media from passing through the dispersion plates in the PhosBan Reator 150 or PhosBan Reactor 550.

$2.99
AquaMaxx ConeS CO-1 In-Sump Protein Skimmer

AquaMaxx ConeS CO-1 In-Sump Protein Skimmer

AquaMaxx ConeS In-Sump Protein Skimmer AquaMaxx ConeS Series In-Sump Protein Skimmers efficiently remove organic waste from aquarium water. The hybrid cone body, the advanced bubble chamber and the proprietary conical diffuser...

$289.99
AquaMaxx WS-1 In-Sump Protein Skimmer

AquaMaxx WS-1 In-Sump Protein Skimmer

The highly-rated HOB-1 skimmer is now available in an in-sump version! The AquaMaxx WS-1 protein skimmer features an incredibly responsive collection cup and an amazingly powerful submersible pump. It is rated up to 65 gallon...

$159.99
AquaMaxx FR-S Internal GFO Carbon and Biopellet Filter Media Reactor with Sicce Pump

AquaMaxx FR-S Internal GFO Carbon and Biopellet Filter Media Reactor with Sicce Pump

AquaMaxx FR-S Internal Media Reactor is a great multi-purpose aquarium water filters specially designed for use in smaller marine and reef aquaria. Insert your media of choice to help eliminate organic pollutants, odors, discolora...

$74.99
Bubble Magus Curve 5 In Sump Needle Wheel Protein Skimmer w/ Bubble Plate

Bubble Magus Curve 5 In Sump Needle Wheel Protein Skimmer w/ Bubble Plate

Bubble-Magus skimmers are practical and highly efficient. These skimmers offer innovative features along with reliable pumps at an affordable price: which makes them a great value. The Curve 5 skimmer has all the right feature...

$209.99
Berlin Sump Replacement Sponge

Berlin Sump Replacement Sponge

Berlin Sump BS-1 Filter Foam Block Size: 4.5" x 5" x 2.5"

From $5.29
AquaMaxx BioMaxx BioPellet Reactor

AquaMaxx BioMaxx BioPellet Reactor

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...

$109.99
Lifegard Aquatics 29-1/2 inch Micron Cartridge R172010

Lifegard Aquatics 29-1/2 inch Micron Cartridge R172010

29 1/4" 20 Micron Cartridge CL-29 for Lifegard Aquatics AF-94 Triple Inline Mechanical Filter (requires 29" standpipe)

$16.99
Vertex Vectra Universal Self Cleaning Protein Skimmer Lid

Vertex Vectra Universal Self Cleaning Protein Skimmer Lid

The Vertex Vectra Universal Self Cleaning Protein Skimmer Lid has titanium screws to securely attach the lid to the skimmer cup. It includes an O-ring to place between the motor (sold separately) and the lid to eliminate water fr...

From $21.99
AquaMaxx Bubble Stopper for HOB-1 Protein Skimmer

AquaMaxx Bubble Stopper for HOB-1 Protein Skimmer

Easily attaches to the outlet of your AquaMaxx HOB-1 skimmer to eliminate unsightly micro-bubbles.

$24.99
Two Little Fishies GFO Phosban Reactor 550

Two Little Fishies GFO Phosban Reactor 550

The Phosban Reactor 150™ has become a staple amongst most aquarists who keep SPS corals. So much so that you often see Phosban used interchangeably with the term GFO or Granular Ferric Oxide. To meet the demand of larger tanks and...

$85.49
1 - 25 of 399
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 MEDIA REACTOR! Sign up for hot deals, helpful videos, and a chance to win an Accel Aquatics FR-30 Media Reactor!