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4 x 21" Filter Cartridge - Refillable
Oh these refillable filter cartridges will save you BIG money!
Looking for a refillable filter cartridge for 4x21" Housings?
This is it.
These refillable cartridge fit the 4x21" RO 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.
|Product Name Rewrite||4 x 21" Filter Cartridge - Refillable|
|Product Title||4 x 21" Filter Cartridge - Refillable|