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
Show: per page
Grid View Grid List View List
Sort by:
0.5 Micron Carbon Block Replacement Filter for Captive Purity, SpectraPure & Kent Marine

0.5 Micron Carbon Block Replacement Filter for Captive Purity, SpectraPure & Kent Marine

1/2 micron carbon block prefilter - highly recommended replacement filter highly effective at reducing unwanted taste, odor, chlorine, fine sediments and pesticides. nominal 0.5-micron rating effective at reducing...

$13.49
0.5 Micron Sediment Replacement Filter

0.5 Micron Sediment Replacement Filter

Please note that these replacement cartridges are interchangeable with Captive Purity`s, Kent Marine`s, and SpectraPure`s RO or RO/DI units. We have researched the best replacement cartridges among these three manufactur...

$12.99
5 Micron Carbon Block Replacement Filter for Captive Purity and SpectraPure

5 Micron Carbon Block Replacement Filter for Captive Purity and SpectraPure

5 micron carbon block prefilter nominal 5-micron rating high dirt-holding capacity maximizes utilization of the carbon block high porosity design helps prevent the cartridge from plugging before its adsorption capacity...

$10.49
Kent Marine Float Valve Only, Black ABS

Kent Marine Float Valve Only, Black ABS

All ABS black high density plastic. No metal parts. Will not rust in Saltwater. Rated for City Water Pressure and will mount in sump, hard plastic pond or garbage can. (Kent Marine Part No. FVKENT) The FVKENT is an all plastic fl...

$20.49 $14.99
Standard Faucet Adapter / Quick Connect Faucet Coupler

Standard Faucet Adapter / Quick Connect Faucet Coupler

Standard Faucet Adapter with Aerator Can be installed on most kitchen faucets to divert water to the RO or RO/DI unit. **Variations of this product can be found in many online stores. The version we carry is of the highes...

$13.49
Reverse Osmosis System Flush Valve Kit

Reverse Osmosis System Flush Valve Kit

Flush Valve Kit for systems with 1/4" waste water tubing. **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching und...

$11.99
AquaticLife Solid Carbon Block Pre-filter Reverse Osmosis Cartridge

AquaticLife Solid Carbon Block Pre-filter Reverse Osmosis Cartridge

Feature(s): 9 ¾” Standard size cartridge includes dual rubber gaskets to ensure 100% water flow-through. Activated Carbon removes chlorine and chloramines from most incoming tap water supplies for up to six months. Durabl...

$10.49
Captive Purity Bulk Color-Changing Deionization Resin

Captive Purity Bulk Color-Changing Deionization Resin

Bulk Color-Change Deionization Resin. Enough to fill one refillable DI cartridge. * Make sure to pack the cartridge tightly to avoid channeling / bypass.

From $12.99
Pressure Gauge Only: 1/8 inch NPT

Pressure Gauge Only: 1/8 inch NPT

Pressure guage for easy troubleshooting. 1/8" NPT **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our...

$14.99
Captive Purity Bulk Deionization Resin

Captive Purity Bulk Deionization Resin

Bulk Deionization Resin. Enough to fill one refillable DI cartridge. * Make sure to pack the cartridge tightly to avoid channeling / bypass.

From $11.99
Mur-Lok® 1/4 Inch X 1/4 Inch 90 Degree Ball Valve

Mur-Lok® 1/4 Inch X 1/4 Inch 90 Degree Ball Valve

Color: White Mur-lok Part# : I0410425 Tube O.D.: 1/4" Male Thread: 1/4" NPTF Mur-lok fitting information Mur-lok® Polypropylene Fittings have a dual o-ring design at each tube connection, giving end users confidence in the...

$10.49
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.