REFILLABLE RESIN COLUMNS are a low-cost alternative to disposable
cartridges. Optional auto shut-off quick disconnect kits available
for most models. Each column includes an initial charge of pre-measured
color-indicating hydrogen-form cation resin.
Models W7901L/S: Our most popular sizes. Narrow design for
Models W7902(A): Refillable columns for IWT Metex II simple
and duplex mounting bracket assemblies.
Model W7903: Refillable column for CH16D Larson Lane Condensate