Premium Color-Indicating Mixed Bed DI Resin Refill Nuclear Grade. Contains enough DI resin to fill one 10" cartridge. Don't have...

Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor....

Premium NON Color-Indicating Mixed Bed DI Resin Refill Nuclear Grade. Contains enough DI resin to fill one 10" cartridge. Don't...

The TUNZE® Osmolator 3 nano is a simple and safe device with just one sensor for maintaining a constant water...

This 5" x 8" x 1" zippered neoprene pouch is great for safely storing Apogee meters, microCache devices, and sensors....

MATRIKX® CTO Plus filters, powered by GREENBLOCK, are made from 100% coconut shell carbon, a renewable, and ecologically sustainable material....

1 Micron Sediment Replacement Filter Can be used in any standard full size RO unit. Recommend changing every 4-6 months...

The CoralVue HYDROS Auto Top-Off Kit Includes: HYDROS Triple Water Level Sensor (plugs into HYDROS Sense Port), HYDROS DC Micro...

The PMUP is a multi-purpose pump that can be used for many different tasks on your aquarium.   Power supply not...

BRS PRO Series Anion DI Resin (Color Changing) - Part 2 of 3 Changes from Blue to Amber when exhausted...

HYDROS Float Switch with Magnetic Mount The HYDROS Magnetic Float Switch Sensor is a simple yet effective water level sensor...

BRS PRO Series Cation DI Resin (Color Changing) - Part 1 of 3 Changes from Purple to Amber when exhausted...

The HYDROS Dosing Pump is a simple and affordable way to automate the addition of liquid supplements, trace elements, and...

.5 Micron Sediment Replacement Filter Comes Standard with Spectra Deluxe Units Can be used in any standard full size RO...

World’s Smallest Dual-Sensor Aquarium Auto Top Off   Features: NEW! Controller programming & circuitry for added system protection NEW! Improved...

BRS 1.5 gallons (7.5 lbs.) DI Resin DI Resin is necessary to reduce Total Dissolved Solids (TDS) to zero and...

Poly-P Float Valve with Adjustable Arm, 1/4in Tubing Jaco Fitting Mini PVC Float Valve, 1/4" Tubing Inlet, Adjustable Arm, .093...

5 Micron Carbon Replacement Filter Can be used in any standard full size RO unit. Recommend changing every 4-6 months...

Includes 1- 0.5 micron RO sediment & 1- 1micron RO carbon filter

Replacement dosing pump with low voltage 3-12 V DC for Osmolator®, power with 4 mm (.2") hose at 12 V:...

THESE ARE BRAND NEW BUT HAD TO BE REPACKAGE BECAUSE THE BOX GOT WET- EVERYTHING LOOKS GOOD SO THERE SHOULD...

CarbonDoser Electronic CO2 Regulator V2.0 (complete system: with remote box option)   Now sold with the TUNZE (German Built) Regulator...

Thin Film Composite (TFC) Membranes for standard RO systems and the RO Buddie. Features: Polyamide membrane material with a negative...

Bubble Magus Dosing Pump Replacement Head

Simplicity 5L Modular Dosing Container

Fits ReefATO+   Red Sea Replacement ReefATO+ Reef Sensor V2

VX-1 – An individual pump with a universal 24v power supply. This also includes a mounting triangle to mount the...

Neptune Replacement Head Cap for Dosing Pump Complete assembly includes cover, peri-tube, fittings and roller wheel. Neptune Systems recommends that...

Red Sea ReefDose Head-Tube with Hose barbs

HYDROS Blenny is an aquarium controller with four micro-liquid dosing pumps for precise dosing of two-part and trace elements. It...

Bottle Adapters Doser Tubing-to-Bottle adapter plugs Seamlessly connect dosing pump tubing to supplement bottles   Seachem Bottle Adapter Plugs come...

Bottle Adapters Doser Tubing-to-Bottle adapter plugs Seamlessly connect dosing pump tubing to supplement bottles   Seachem Bottle Adapter Plugs come...

The smart way to REDUCE WASTE WATER, DECREASE RESIN CONSUMPTION and EXTEND MEMBRANE LIFE! YOUR Water MADE Better - Increase...

AFFORDABLE CHLORAMINE REMOVAL – The Carbon Plus chloramine filter cartridge features high-capacity reduction of chloramines.  Designed to fit standard water...

HYDROS Sense Port Accessory   Monitor your RO/DI units' water quality with HYDROS Dual Inline TDS Sensor. Plugs directly into...

Kolar Labs Empty RO Cartrige

Kolar Labs DI Resin Color Indicating In Canister   KOLAR FILTRATION IS THE EXCLUSIVE DISTRIBUTOR FOR LANXESS Lewatit® NM-65 DI...

Average NaCl Rejection: 98% Permeate Flow @ 60 PSI: 100 GPD Specifications are based on 500 mg/L NaCl solution at...

Smart. Safe. Quiet. The ReefATO+ is designed to maintain a stable salinity and water volume in a reef aquarium by...

Deluxe 4-color tube kit Everything required to connect a dosing pump in one convenient kit.  Available in 2 color versions...

TUNZE Osmolator nano Osmolator nano For small aquariums, a stable osmotic balance is important, because they are particularly sensitive to...