Reverse Osmosis

Ensure the best water quality for your reef tank with our reverse osmosis (RO) and deionization (DI) systems, designed to remove harmful contaminants like chlorine, chloramines, nitrates, and phosphates from your tap water. Producing zero total dissolved solids (TDS) water is critical for maintaining the health of your aquarium inhabitants and preventing unwanted algae growth. Our RO and RO/DI systems are engineered to provide the most reliable filtration, ensuring your saltwater aquarium thrives.

We take pride in offering well-built, leak-free systems that are both affordable and durable. With high-quality filters from trusted brands like GE and DOW, and robust dual O-ring push connect fittings, our systems deliver premium performance. Hand-built in Minnesota, our Bulk Reef Supply RO and RO/DI systems come in various configurations to meet your exact needs—whether you're setting up a saltwater aquarium or seeking a reliable drinking water solution.

 

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212 Items

  1. 5 Stage Premium 75 GPD RO/DI System
    Bulk Reef Supply
    5 Stage Premium 75 GPD RO/DI System
    $249.99 $249.99

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  2. 5 Stage Premium Plus 100 GPD RO/DI System
    Bulk Reef Supply
    5 Stage Premium Plus 100 GPD RO/DI System
    $329.99 $329.99

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  3. 5 Stage Premium 200 GPD Water Saver RO/DI System
    Bulk Reef Supply
    5 Stage Premium 200 GPD Water Saver RO/DI System
    $339.99 $339.99

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  4. 5 Stage Premium 150 GPD Water Saver RO/DI System
    Bulk Reef Supply
    5 Stage Premium 150 GPD Water Saver RO/DI System
    $319.99 $319.99

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  5. 6 Stage 75GPD Drinking & Reef RO/DI System with Brushed Nickel Faucet
    Bulk Reef Supply
    6 Stage 75GPD Drinking & Reef RO/DI System with Brushed Nickel Faucet
    $349.99 $349.99

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  6. 6 Stage 75GPD Drinking & Reef RO/DI System with Silver Faucet
    Bulk Reef Supply
    6 Stage 75GPD Drinking & Reef RO/DI System with Silver Faucet
    $349.99 $349.99

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  7. 5 Stage Premium Plus 200 GPD Water Saver RO/DI System
    Bulk Reef Supply
    5 Stage Premium Plus 200 GPD Water Saver RO/DI System
    $399.99 $399.99

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  8. 5 Stage 75GPD Drinking Water RO System with Nickel Faucet
    Bulk Reef Supply
    5 Stage 75GPD Drinking Water RO System with Nickel Faucet
    $309.99 $309.99

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  9. 5 Stage 75GPD Drinking Water RO System with Silver Faucet
    Bulk Reef Supply
    5 Stage 75GPD Drinking Water RO System with Silver Faucet
    $309.99 $309.99

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  10. 4 Stage Value 75GPD RO/DI System
    Bulk Reef Supply
    4 Stage Value 75GPD RO/DI System
    $199.99 $199.99

  11. 4 Stage Value Plus 200GPD Water Saver RO/DI System
    Bulk Reef Supply
    4 Stage Value Plus 200GPD Water Saver RO/DI System
    $349.99 $349.99

  12. 4 Stage Value Plus 100GPD RO/DI System
    Bulk Reef Supply
    4 Stage Value Plus 100GPD RO/DI System
    $309.99 $309.99

  13. 4 Stage Value 150GPD Water Saver RO/DI System
    Bulk Reef Supply
    4 Stage Value 150GPD Water Saver RO/DI System
    $269.99 $269.99