The Watts Premier 531102 RO Pure Replacement Six Month Prefilter Kit provides a six month supply of prefilters for your RO Pure RO-4 reverse osmosis system. This kit includes the sediment and carbon prefilters.

Kit includes:

• Qty. 1 of 105311 – Sediment Prefilter
• Qty. 1 of 105351 – Carbon Prefilter

Product Note: These filters will NOT fit the Watts 1/4 turn Kwik Change Reverse Osmosis System. If you have one of these systems please click here.