Tucker 4 x 21" Filter Cartridge - DI Resin- Single Use, #20051-DI
RHG 4 x 21-inch Filter Cartridge - DI Resin- Single Use, #20051-DI
 
📊 AI-POWERED MARKET ANALYSIS
• Highlight: This 4 x 21-inch DI resin cartridge from RHG drops into standard 4x21 RO housings from many brands, polishing RO output to a spot-free 000 TDS finish.
• Best For: Window cleaners running 4x21 housings who prefer a sealed, ready-to-swap resin cartridge over loose resin.
• Expert Note: As a sealed single-change cartridge it eliminates the mess of pouring loose resin - ideal for crews who value fast, clean change-outs.
Sale Price: $130.53
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Product Code: 20051-DI
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Tucker 4 x 21" Filter Cartridge - DI Resin- Single Use, #20051-DI

Looking for a DI filter cartridge for 4x21" Housings?

This is it.

These one time use DI filter cartridges fit the 4x21" RO Housings from many different manufacturers.

Filled with our virgin resin these filters will remove all of the impurities in your water to make spot free water.