Compatible Reverse Osmosis filter replacements for the Rainsoft 21176, the 21179, and 21191 systems.
Set includes 2 carbon block filters. Excellent quality and performance.
Only needs changed 1 time per year.
Set includes 2 carbon block filters. Excellent quality and performance.
Only needs changed 1 time per year.
If you also are in the market for the RO membrane, our store does have it in stock for this model.