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Collection: Controllers & Testing

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57 products

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Auto Top Off & Reservoirs (2 products)
Controllers & Testing (57 products)
Hanna (12 products)
Heaters (1 product)
Medications & Treatments (1 product)
Neptune Systems (28 products)
RODI Accessories (1 product)
RODI Units (1 product)
Salifert (6 products)

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Auto Top Off & Reservoirs (2 products)
Controllers & Testing (57 products)
Hanna (12 products)
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Neptune Systems (28 products)
RODI Accessories (1 products)
RODI Units (1 products)
Salifert (6 products)

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57 products

API Saltwater Master Test Kit

API Saltwater Master Test Kit

Regular price $39.59 USD

Regular price Sale price $39.59 USD
Unit price per
Seachem Ammonia Alert

Seachem Ammonia Alert

Regular price $7.99 USD

Regular price Sale price $7.99 USD
Unit price per
Hanna Phosphate ULR Checker

Hanna Phosphate ULR Checker

Regular price $67.99 USD

Regular price Sale price $67.99 USD
Unit price per
Hanna Nitrate HR Checker

Hanna Nitrate HR Checker

Regular price $67.99 USD

Regular price Sale price $67.99 USD
Unit price per
Hanna Marine Master Multiparameter Photometer

Hanna Marine Master Multiparameter Photometer

Regular price $449.99 USD

Regular price Sale price $449.99 USD
Unit price per
XP Aqua RODI Flood Guardian

XP Aqua RODI Flood Guardian

Regular price $69.99 USD

Regular price Sale price $69.99 USD
Unit price per
Hanna Copper Checker High Range

Hanna Copper Checker High Range

Regular price $67.99 USD

Regular price Sale price $67.99 USD
Unit price per
Hanna Phosphate Checker

Hanna Phosphate Checker

Regular price $67.99 USD

Regular price Sale price $67.99 USD
Unit price per
Salifert Flatworm eXit

Salifert Flatworm eXit

Regular price $16.99 USD

Regular price Sale price $16.99 USD
Unit price per
Hanna Copper Reagent

Hanna Copper Reagent

Regular price $18.00 USD

Regular price Sale price $18.00 USD
Unit price per
Hanna Phosphate ULR Reagent

Hanna Phosphate ULR Reagent

Regular price $17.99 USD

Regular price Sale price $17.99 USD
Unit price per
Salifert Nitrate Test Kit

Salifert Nitrate Test Kit

Regular price $17.37 USD

Regular price Sale price $17.37 USD
Unit price per
Salifert Nitrite Test Kit

Salifert Nitrite Test Kit

Regular price $11.86 USD

Regular price Sale price $11.86 USD
Unit price per
Salifert Ammonia Test Kit

Salifert Ammonia Test Kit

Regular price $14.99 USD

Regular price Sale price $14.99 USD
Unit price per
Salifert pH Test Kit

Salifert pH Test Kit

Regular price $11.89 USD

Regular price Sale price $11.89 USD
Unit price per
Hanna Calcium Reagent

Hanna Calcium Reagent

Regular price $29.99 USD

Regular price Sale price $29.99 USD
Unit price per
Hanna Calcium Checker

Hanna Calcium Checker

Regular price $67.99 USD

Regular price Sale price $67.99 USD
Unit price per
Neptune 1" Flow Sensor FS100

Neptune 1" Flow Sensor FS100

Regular price $65.99 USD

Regular price Sale price $65.99 USD
Unit price per
Neptune VDM LED & Pumps Control Module

Neptune VDM LED & Pumps Control Module

Regular price $109.99 USD

Regular price Sale price $109.99 USD
Unit price per
Neptune PM2 Salinity Module

Neptune PM2 Salinity Module

Regular price $94.99 USD

Regular price Sale price $94.99 USD
Unit price per
Neptune I/O Breakout Box

Neptune I/O Breakout Box

Regular price $47.99 USD

Regular price Sale price $47.99 USD
Unit price per
Neptune OS-1-M Optical Level Sensor V2 W/ Mount

Neptune OS-1-M Optical Level Sensor V2 W/ Mount

Regular price $39.99 USD

Regular price Sale price $39.99 USD
Unit price per
Neptune 2" Flow Sensor FS200

Neptune 2" Flow Sensor FS200

Regular price $109.99 USD

Regular price Sale price $109.99 USD
Unit price per
Hanna Marine Salinity Tester

Hanna Marine Salinity Tester

Regular price $89.99 USD

Regular price Sale price $89.99 USD
Unit price per
Neptune Double Junction ORP Probe

Neptune Double Junction ORP Probe

Regular price $104.99 USD

Regular price Sale price $104.99 USD
Unit price per
Neptune Temperature Probe

Neptune Temperature Probe

Regular price $32.95 USD

Regular price Sale price $32.95 USD
Unit price per
Neptune A3 Apex Jr

Neptune A3 Apex Jr

Regular price $299.95 USD

Regular price Sale price $299.95 USD
Unit price per
Neptune FMK Flow Monitoring Kit

Neptune FMK Flow Monitoring Kit

Regular price $219.99 USD

Regular price Sale price $219.99 USD
Unit price per
Neptune DOS Replacement Pump Head

Neptune DOS Replacement Pump Head

Regular price $36.99 USD

Regular price Sale price $36.99 USD
Unit price per
Neptune DDR (DOS Dual Reservoir)

Neptune DDR (DOS Dual Reservoir)

Regular price $215.99 USD

Regular price Sale price $215.99 USD
Unit price per
Neptune COR

Neptune COR

Regular price From $339.99 USD

Regular price Sale price From $339.99 USD
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Neptune COR

Regular price From $339.99 USD

Regular price Sale price From $339.99 USD
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Neptune COR

Regular price From $339.99 USD

Regular price Sale price From $339.99 USD
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24vDC Accessory Power Supply (PMUPv2, SV-1, GRO)

24vDC Accessory Power Supply (PMUPv2, SV-1, GRO)

Regular price $24.99 USD

Regular price Sale price $24.99 USD
Unit price per
Neptune 36W 24VDC Power Supply

Neptune 36W 24VDC Power Supply

Regular price $34.99 USD

Regular price Sale price $34.99 USD
Unit price per
Neptune LD-1 Low Profile Leak Detection Probe

Neptune LD-1 Low Profile Leak Detection Probe

Regular price $34.99 USD

Regular price Sale price $34.99 USD
Unit price per
Neptune AquaBus Cable (M/F)

Neptune AquaBus Cable (M/F)

Regular price From $23.99 USD

Regular price Sale price From $23.99 USD
Unit price per

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Neptune AquaBus Cable (M/F)

Regular price From $23.99 USD

Regular price Sale price From $23.99 USD
Unit price per

Neptune AquaBus Cable (M/F)

Regular price From $23.99 USD

Regular price Sale price From $23.99 USD
Unit price per
Neptune AquaBus Cable (M/M)

Neptune AquaBus Cable (M/M)

Regular price From $16.99 USD

Regular price Sale price From $16.99 USD
Unit price per

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Neptune AquaBus Cable (M/M)

Regular price From $16.99 USD

Regular price Sale price From $16.99 USD
Unit price per

Neptune AquaBus Cable (M/M)

Regular price From $16.99 USD

Regular price Sale price From $16.99 USD
Unit price per

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Contact Information

614-532-8699

265-B Lincoln Circle, Gahanna, OH 43230

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