Looking for a refillable filter cartridge for 4x21" housings? This is it. These refillable cartridges fit the 4x21" housings from many different manufacturers. Fill with our virgin bulk DI resin to save big on your filter cost. Holds 1/10 of a cubic foot of DI resin.
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Tucker USA 21" Filter Insert (EMPTY) 20051-DI
Tucker USA 21" Filter Insert (EMPTY) 20051-DI
Regular price
$48.64
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$48.64
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