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:
51 - 75 of 85
Aqua Clear 20 Foam Filter Block

Aqua Clear 20 Foam Filter Block

Feature(s): For AquaClear 20 and "Mini" Mechanically filters dirt and debris Tailored fit prevents bypass Large capacity for waste capture Porous construction provides numerous bacterial attachments Long lasting ...

$1.49
Eheim Carbon Filter Pad for ECCO Canister Filters 3/pk

Eheim Carbon Filter Pad for ECCO Canister Filters 3/pk

Carbon Filter pads for Eheim ECCO 2232/2234/2236 and Eheim ECCO Pro 130/200/300.

$7.99
CPR Replacement Washer Set For BakPak, Dual BakPak & All Hang-On AquaFuge Refugiums

CPR Replacement Washer Set For BakPak, Dual BakPak & All Hang-On AquaFuge Refugiums

CPR-REPLACEMENT WASHER SET Includes: Outlet gasket and inlet gasket Replacement for BakPak, Dual BakPak, all hang on AquaFuges

$3.99
Tom Aquatics Poly Fiber Filter Pad for Rapids Pro Series PS3 & PS4 - 3 pack

Tom Aquatics Poly Fiber Filter Pad for Rapids Pro Series PS3 & PS4 - 3 pack

Made of strong polyester fibers, these pre-cut filter pads efficiently traps and removes waste particles and other debris that are being drawn into the filter. 3 pack.

$9.99
Hagen Fluval Replacement Bio-Foam Canister Filters

Hagen Fluval Replacement Bio-Foam Canister Filters

Exclusively designed for Fluval aquarium canister filters, Fluval Bio-Foam performs exceptional mechanical and biological filtration. Bio-Foam`s dense structure is very effective at trapping small particles that are not captured i...

From $4.99
Outlet O-ring for ASM Protein Skimmers

Outlet O-ring for ASM Protein Skimmers

Replacement Outlet O-ring for ASM Mini G Protein Skimmer

From $1.99
Hydor Filter Pads for Professional Canister Filter

Hydor Filter Pads for Professional Canister Filter

Replacement Pro-Filter 150 Small White Fine Filter Pad for use with Hydor 150 Professional Canister Filters - 2 per pack. High density mechanical sponge that captures small debris.

From $9.99
NextReef MR1 GFO and Carbon Filter Media Reactor O-ring

NextReef MR1 GFO and Carbon Filter Media Reactor O-ring

Replacement O-Ring for the NextReef MR1 Reactor

$4.99
Two Little Fishies Reactor 550 Replacement O-Ring

Two Little Fishies Reactor 550 Replacement O-Ring

Two Little Fishies Reactor 550 Replacement O-Ring

$2.49
AquaMaxx Replacement Foam for Fluidized Filter Media Reactor

AquaMaxx Replacement Foam for Fluidized Filter Media Reactor

AquaMaxx Replacement Foam for Fluidized Filter Media Reactor

$4.99
Replacement Rubber Feet for AquaMaxx In-Sump and Cone Protein Skimmers

Replacement Rubber Feet for AquaMaxx In-Sump and Cone Protein Skimmers

Replacement Rubber Feet for AquaMaxx In-Sump and Cone Protein Skimmers

$2.99
Volute O-ring for ASM Protein Skimmers

Volute O-ring for ASM Protein Skimmers

Replacement Volute O-ring for ASM G-1X, G-2, G-3 Protein Skimmers

From $0.99
CPR Replacement O-Ring For BakPak, Dual BakPak & AquaFuge PS Refugiums

CPR Replacement O-Ring For BakPak, Dual BakPak & AquaFuge PS Refugiums

CPR-REPLACEMENT O-RING Includes: O-ring Replacement for BakPak, Dual BakPak, AquaFuges PS

$1.99
Aquarium Pharmaceuticals® API FilStar Bio-Chem Stars

Aquarium Pharmaceuticals® API FilStar Bio-Chem Stars

Canister filter media designed to fit the FilStar XP. Simply the best bio-filtration media available. Optimal pore size for growing massive colonies of beneficial bacteria. Treats up to 100 gallons. Bio-Chem Stars® - for fresh a...

$9.99
AquaC Cleaning Brush

AquaC Cleaning Brush

AquaC Cleaning Brush 1/2" diameter bottle brush on flexible wire, 12 1/2" total length.

$3.99
Eheim Suction Cup w/ Clip 0.35in/0.50 inch

Eheim Suction Cup w/ Clip 0.35in/0.50 inch

Eheim Suction Cup with Clip 0.35"/0.50"

$6.49
Nylon Spacer for ASM Protein Skimmers

Nylon Spacer for ASM Protein Skimmers

Replacement Nylon Spacer for ASM G-1 w/ G-500 Pump Protein Skimmer

From $0.99
Lifegard Aquatics Gauge Adapter & Air Bleed R172045AX

Lifegard Aquatics Gauge Adapter & Air Bleed R172045AX

Pressure Gauge Adapter & Air Bleed for Lifegard Aquatics Inline Mechanical Filter

$8.49
Nu-Clear Replacement Lid Gasket

Nu-Clear Replacement Lid Gasket

Replacement gasket for Nu-Clear Filter Lids

$9.99
Eheim Liberty Bioblock Cartridge (2 pcs)

Eheim Liberty Bioblock Cartridge (2 pcs)

Bioblock for Eheim Liberty Hang-On Filters (2 pcs)

$2.85
Lifegard Aquatics 9-3/4 inch Standpipe for AF-94

Lifegard Aquatics 9-3/4 inch Standpipe for AF-94

9 3/4" Standpipe for Lifegard Aquatics AF-94 Single Inline Mechanical Filter

$8.49
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
Eheim Insert for Prefilter 4004620

Eheim Insert for Prefilter 4004620

Insert for Eheim Surface Extractor Prefilter

$4.99
AquaMaxx Replacement O-ring for BioMaxx BioPellet and Media Reactors

AquaMaxx Replacement O-ring for BioMaxx BioPellet and Media Reactors

Replacement O-ring for BioMaxx BioPellet and Media Reactors

$3.99
Replacement Body Screw for AquaMaxx HOB-1 Protein Skimmer

Replacement Body Screw for AquaMaxx HOB-1 Protein Skimmer

Replacement Body Screw for AquaMaxx HOB-1 Protein Skimmer

$1.99
51 - 75 of 85
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.