Add-on DI Filter with Color Change Cartridge

In-Line DI Cartridge  Helps to remove nitrate, silicate and phosphates and other impurities Affordable add-on DI cartridge to any RO system using 1/4" RO tubing Includes a clear canister, color-change DI cartridg...

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Captive Purity 60 GPD Piggy Back Kit

This easy to install Piggy Back kit can be added to your 50-60GPD RO or RO/DI unit to double its output.

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Captive Purity 75GPD Piggy Back Kit

This easy to install Piggy Back kit can be added to your 75-80GPD RO or RO/DI unit to double its output.

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Inline Carbon Filter - 1/4 inch FPT x 1/4 inch FPT

Inline Carbon Filter

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Inline Carbon For 2 Stage RO System

For 2-stage Captive Purity Compact, SpectraPure CHP and Kent Marine Bare Bones RO systems only. Please note that these replacement cartridges are interchangeable with Captive Purity`s, Kent Marine`s, and SpectraPure`s R...

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Inline DI Filter BxB 5555-bb

In-Line DI Cartridge great addition to any RO or RO/DI system helps to remove silicates, phosphates and nitrates one-time use cartridge

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SpectraPure MaxCap™ 1-Stage Add-on Assembly System

Max-Cap DI Retro-Fit Kit, 1 Sta, 10in Clr Cart, TDS Mtr, w/Filt Wr Everything you need for most systems to convert a single stage DI to a dual stage DI with MaxCap high capacity DI cartrdige.

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SpectraPure MaxCap™ 2-Stage Add-on Assembly System

Max-Cap DI Retro-Fit Kit, 2 Sta w/ Silica Buster, 10in Clr Carts, TDS Mtr, w/Filt Wr Everything you need for most systems to add a two stage DI to your RO system with MaxCap high capacity DI cartrdige.

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SpectraPure Piggy Back Kits 90 GPD

Economical way to more than double the production rate of any existing RO or RODI System. Increase the production rate of a system by 90 GPD.

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