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
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:
51 - 49 of 49
Eheim Liberty Carbon Insert Cartridge

Eheim Liberty Carbon Insert Cartridge

Activated Carbon Inserts for Eheim Liberty Hang-On Filters (2 pcs)

From $10.99
Aquarium Pharmaceuticals® API NITRA-ZORB for NEXX or RENA Filters Size 4  - 2 Pieces

Aquarium Pharmaceuticals® API NITRA-ZORB for NEXX or RENA Filters Size 4 - 2 Pieces

A convenient pouch of natural and synthetic ion-exchange resins that selectively remove ammonia, nitrite, and nitrate from freshwater aquariums. Nitra-Zorb™ also helps during start up by reducing unhealthy ammonia surges while est...

$10.99
Aquarium Pharmaceuticals® API PHOS-ZORB for NEXX or RENA Filters Size 4  - 2 Pieces

Aquarium Pharmaceuticals® API PHOS-ZORB for NEXX or RENA Filters Size 4 - 2 Pieces

Selectively removes phosphate and silicate from fresh and saltwater aquariums to eliminate cloudy water. Designed to fit the API nexx FILTER.

$11.49
Lifegard Aquatics Cartridge CL9A (2 Reg. for AF94-19 and 3 Reg. for AF94-29)

Lifegard Aquatics Cartridge CL9A (2 Reg. for AF94-19 and 3 Reg. for AF94-29)

Cartridge CL9A for Lifegard Aquatics AF-94-19/29 Inline Mechanical Filter

$17.99
CPR Bak-Pak 2 Pre-skimmer

CPR Bak-Pak 2 Pre-skimmer

The Bak-Pak Pre-skimmer fits around the powerhead and skims water from the surface of the aquarium where wastes accumulate. The Pre-skimmer makes the Bak-Pak even more efficient.

$16.99
Eheim Filter Pad Set for ECCO Pro 130, 200 and 300 Canister Filter

Eheim Filter Pad Set for ECCO Pro 130, 200 and 300 Canister Filter

Set of replacement filter pads (1x blue, 4x white) for Eheim ECCO Pro Canister Filter 130 / 200 / 300

$10.79
Aquarium Pharmaceuticals® API Crystal Bio-Chem Zorb Cartridge for SuperClean Filters

Aquarium Pharmaceuticals® API Crystal Bio-Chem Zorb Cartridge for SuperClean Filters

Replacement Crystal Bio-Chem Zorb Cartridge for API SuperClean 50 Power Filter - 3 Pack *Makes water clean and clear Features: Superior resins and activated carbon Removes debris, colors and odors Densely filled cartr...

From $9.99
Hydor Freshwater Carbon Pouches for Professional Canister Filter - 100 gram (3pk)

Hydor Freshwater Carbon Pouches for Professional Canister Filter - 100 gram (3pk)

Replacement Carbon for Hydor Professional Canister Filters Pro-Filter Freshwater Carbon 3x100gm pouches - Highly absorbent active carbon eliminates bad odors and polluting substances. *Freshwater use ONLY!

$14.99
Precision Marine ST-1 Skimmer Stand - 9.5 inch x 5.5 inch

Precision Marine ST-1 Skimmer Stand - 9.5 inch x 5.5 inch

Designed specifically to fit the authentic Bullet Series, these trick stands will also provide additional space in your stand above a water pump for storage, etc. Overall Dimensions: 9.5" x 5.5" Minimum Height: 3.125" ...

$19.99
Eheim Carbon Filter Pad for 2226/2228 (also for 2026/2028/2126/2128) Canister Filter

Eheim Carbon Filter Pad for 2226/2228 (also for 2026/2028/2126/2128) Canister Filter

Carbon Filter Pad for Eheim Professionel External Filter 2226/2228 (also for 2026/2028/2126/2128)

$14.89
Replacement Intake Tube w/ Strainer for AquaMaxx HOB-1 Protein Skimmer

Replacement Intake Tube w/ Strainer for AquaMaxx HOB-1 Protein Skimmer

Replacement intake tube w/ strainer for AquaMaxx HOB-1 Protein Skimmer

$11.99
Venturi for ASM Protein Skimmers

Venturi for ASM Protein Skimmers

Replacement Venturi for ASM Mini-G Protein Skimmer

From $14.49
Lifegard Aquatics 0-30 PSI Pressure Gauge Bottom Mount R172045BX

Lifegard Aquatics 0-30 PSI Pressure Gauge Bottom Mount R172045BX

Replacement Pressure Gauge, 0-30 PSI. Bottom Mount for Lifegard Aquatics Inline Mechanical Filters

$12.49
Hydor Coarse Filter Pad for Professional Canister Filter (2pk)

Hydor Coarse Filter Pad for Professional Canister Filter (2pk)

Replacement Pro-Filter Small Black Coarse Filter Pad for use with Hydor 150 Professional Canister Filters - 2 per pack. Highly porous mechanical sponge that captures large debris.

From $19.99
Zoo Med Microclean 304 Internal Filter

Zoo Med Microclean 304 Internal Filter

Feature(s): Multi-function internal filters for aquariums, terrariums (i.e. turtle or amphibian tanks) or small ponds. The 304 is for 5 to 15 gallon tanks For fresh or saltwater applications. Both filters come with our Un...

$18.99 $12.99
AquaMaxx Skimmer Pump Air Intake Silencer

AquaMaxx Skimmer Pump Air Intake Silencer

AQUAMAXX SKIMMER PUMP AIR INTAKE SILENCER 6MM The AquaMaxx Air Silencer is perfect for quieting the noise made by the massive air intake on the Sicce PSK protein skimmer pumps. The 10mm silencer is designed for the Sicce PSK-25...

From $15.99
Hydor Saltwater Carbon Pouch for Professional Canister Filter - 400 gram

Hydor Saltwater Carbon Pouch for Professional Canister Filter - 400 gram

Replacement Carbon for Hydor Professional Canister Filters Pro-Filter Saltwater Carbon 400gm pouch - Highly absorbent active carbon eliminates bad odors and polluting substances. *For saltwater or freshwater use.

$14.99
Replacement Outlet Pipe for AquaMaxx HOB-1 Protein Skimmer

Replacement Outlet Pipe for AquaMaxx HOB-1 Protein Skimmer

Replacement Outlet Pipe for AquaMaxx HOB-1 Protein Skimmer

$12.49
Aquarium Pharmaceuticals® API Mechanical Foam Pre-Filtration for NEXX Filters Size 4 - 2 Pieces

Aquarium Pharmaceuticals® API Mechanical Foam Pre-Filtration for NEXX Filters Size 4 - 2 Pieces

Ultimate Mechanical filtration medium for crystal clear water. Pre-Filtration nexx® removes organic aquarium pollutants. Removes impurities for improved growth of corals in saltwater and plants in freshwater aquariums.

$11.99
Eheim Carbon Filter Pad for 2222/2224 Canister Filter

Eheim Carbon Filter Pad for 2222/2224 Canister Filter

Carbon Filter Pad for Eheim Professionel External Filter 2222/2224

$18.99
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
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
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 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
51 - 49 of 49
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.