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51 - 75 of 107
Mur-Lok® 1/4 Inch X 1/4 Inch In-Line Ball Valve

Mur-Lok® 1/4 Inch X 1/4 Inch In-Line Ball Valve

Color: Grey Mur-lok Part# : G0420425 Tube O.D.: 1/4" Mur-lok fitting information Mur-lok® Polypropylene Fittings have a dual o-ring design at each tube connection, giving end users confidence in their fitting connections. ...

$6.49
Marine Depot Clear Refillable 10-Inch Cartridge for DI Resin

Marine Depot Clear Refillable 10-Inch Cartridge for DI Resin

Standard 10-Inch refillable cartridge for DI Resin with Twist-Off Cap A great way to save money by using a refillable cartridge. Simply discard the DI resin once exhausted and new resin. Be sure to make sure new resin is tightly...

$7.99
Marine Depot Chloramine-X GAC Carbon Filter

Marine Depot Chloramine-X GAC Carbon Filter

Our best carbon filter for Chloramine removal! More than 20 percent of municipalities use chloramine for water treatment instead of chlorine. Standard carbon block filters only treats for chlorine and will allow ammonia and o...

$15.99
AquaFX Non-Metal Top Mount Float Valve

AquaFX Non-Metal Top Mount Float Valve

Can be adjust for top-mount or side-mount. Non-metal construction makes this float valve perfect for just about any application. Accepts standard 1/4" RO tubing.

$15.00
SpectraPure® Auto Shut Off Valve Float Kit for RO Systems

SpectraPure® Auto Shut Off Valve Float Kit for RO Systems

SpectraPure® Auto Shut Off Valve Float Kit for RO System Positive shut-off; completely shuts off all waste & product water: great for topping off reservoirs Economical The Auto Shut-Off Float Kit is not recommended f...

$45.99
Kent Marine Hi-S TFC Membrane

Kent Marine Hi-S TFC Membrane

Replacment Kent Marine 35GDP Hi-S TFC membrane 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 for the...

From $98.49
AquaFX Booster Pump Kit

AquaFX Booster Pump Kit

The AquaFx booster pump kit includes everything you need to increase water pressure going into your R/O or R/O DI water filter system. Adding a booster pump maximizes membrane production and lowers TDS (total dissolved solids). Be...

$109.99
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. Durable o...

$10.49
Feed Water Adapter For RO System

Feed Water Adapter For RO System

Standard pipe fitting to feed RO or RO/DI filter. 1/2" male x 1/2" Female x 1/4" tubing. This fitting allows you connect your RO or RO/DI unit directly to the plumbing underneath the sink. A ball valve is include so you can easil...

$17.99
SpectraPure® Booster Pump Kit for 60, 90, and 180 gpd Manual-Flush RO/DI Systems

SpectraPure® Booster Pump Kit for 60, 90, and 180 gpd Manual-Flush RO/DI Systems

Add-on Booster Pump Kit for all 60, 90 & 180gpd SpectraPure Manual-Flush Systems. - Includes Pump, Fittings, Tubing, 3ft Controller Cable, Pressure Switch, & 115VAC to 24VAC @ 1A Power Supply - Increases line pressure to any o...

$169.99
HM Digital Triple Inline TDS Monitor

HM Digital Triple Inline TDS Monitor

The TRM-1 is a three-sensor TDS monitor that can monitor the TDS levels at three different points. It is perfect for RO/DI systems and other types of filtration and purification systems. Features Displays TDS levels of the t...

$44.99
AquaFX Barracuda RO/DI System - 100 GPD

AquaFX Barracuda RO/DI System - 100 GPD

Made in the USA! The Barracuda RO/DI is very popular with residential reef enthusiasts, engineered to meet the specific needs of your top off and make up water. AquaFX is proud to the Barracuda recognized by About.com for bei...

$169.99
SpectraPure® Chlorine Test Kit With 10 Tablets

SpectraPure® Chlorine Test Kit With 10 Tablets

Model # : TK-CL-10 Chlorine Test Kit with 10 tablets SpectraPure® Chlorine Test Kits are used for testing the chlorine removal ability of carbon filters by sampling the waste water stream.

$7.99
AquaFX SUPER High Capacity Replacement Carbon Block Filter Cartridge

AquaFX SUPER High Capacity Replacement Carbon Block Filter Cartridge

AquaFx carbon blocks are the most recognized and widely used carbon blocks in the industry, and after 15 years its clear to see why. The raw carbon used in the AquaFX carbon blocks offers only the best in chlorine removal and ...

$14.99
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
AquaFX High Silicate Removal DI Cartridge

AquaFX High Silicate Removal DI Cartridge

AquaFx DI is the leader in making sure your final product water is 0 TDS. The resin AquaFx uses is ideal for making laboratory grade type 1 water, which is perfect for top off water for your reef, salt and corals. AqauFX will alwa...

$25.99
AquaticLife 1 Micron Pre-Filter Reverse Osmosis Cartridge

AquaticLife 1 Micron Pre-Filter Reverse Osmosis Cartridge

Feature(s): Spun Polypropylene Sediment filter removes particulate material found in tap water. 9 7/8" Standard size cartridge is self-sealing for a tight fit in RO units. Design lends itself to long life and increased hold...

$5.99
JG 1/4 inch x 1/4 inch PVC Needle Valve for Calcium Reactors

JG 1/4 inch x 1/4 inch PVC Needle Valve for Calcium Reactors

Ultra-Precision Ball Valve. Great controlling calcium reactor effluent drip rates! Rated up to 125 PSI. Uses standard 1/4" RO tubing used on many reactors. John Guest quick-connect fittings allows for easy installation.

$24.49
SpectraPure® Mixed Bed DI Cartridge - Non-Indicating - SuperDI (DI-MB-10HC)

SpectraPure® Mixed Bed DI Cartridge - Non-Indicating - SuperDI (DI-MB-10HC)

Overview: SuperDI™ Semiconductor Grade Mixed Bed DI Cartridge - High Capacity 10in Shell, 3in dia x 10in L Features: SpectraPure® Semiconductor Grade Mixed-Bed Resin Cartridges provide ultra-pure deionized water and are t...

$29.99
Mur-Lok® 1/2 Inch X 1/2 Inch In-Line Ball Valve

Mur-Lok® 1/2 Inch X 1/2 Inch In-Line Ball Valve

Color: Grey Mur-lok Part# : G0820825 Tube O.D.: 1/2" Mur-lok fitting information Mur-lok® Polypropylene Fittings have a dual o-ring design at each tube connection, giving end users confidence in their fitting connections. ...

$7.49
AquaticLife Mixed Bed Resin Reverse Osmosis Cartridge

AquaticLife Mixed Bed Resin Reverse Osmosis Cartridge

Feature(s): Cation and Anion resins (H+ and OH-) remove the remaining total dissolved solids (TDS) from membrane-filtered water. 10" standard cartridge size includes a top gasket for a secure fit. Cartridge housing shape len...

$19.99
AquaFX Hydraulic Automatic Shut Off Kit

AquaFX Hydraulic Automatic Shut Off Kit

Automatic Shutoff Assembly (ASO) for any Reverse Osmosis System Using 1/4 tubing. When properly installed on a reverse osmosis unit; The ASO activates when back pressure builds in the product line ( due to a float being activat...

$24.99
Mur-Lok® 1/4 Inch EZ Faucet Adapter

Mur-Lok® 1/4 Inch EZ Faucet Adapter

Color: White Mur-lok Part# : H0830425 Tube O.D.: 1/4" Female: 1/2" NPSM Male: 1/2" NPSM EZ Faucet Adapter provides a simple connection for installing any water system,from ultra pure to under the sink carbon filters. The EZ...

$5.99
AquaFX High Pressure Automatic Shut Off Kit

AquaFX High Pressure Automatic Shut Off Kit

*Sold as a kit, This product will only work when used in conjunction with a check valve (Back flow preventer, Included in kit)* This High Pressure ASO is designed to shut off at 60% of line pressure and has built-in ports for Q...

$27.00
1/4 inch RO Tubing

1/4 inch RO Tubing

10-foot roll of 1/4" Reverse Osmosis Tubing - Blue **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 Low...

From $2.50
51 - 75 of 107
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