The Microline CTA-14S RO System Replacement Water Filter Kit With Membrane by IPW Industries Inc. provides a complete one year supply of filters for your CTA-14S reverse osmosis system. This kit includes all pre and post filters as well as the membrane. Kit includes: Qty. 1 - S7011 Compatible Sediment Prefilter Qty. 1 - S1224RS CTA RO Membrane Qty. 1 - S7025 GAC Postfilter Note: Reverse osmosis membrane needs to be replaced every 2-3 years. Additional Details ------------------------------ Product description: The Microline CTA-14S RO System Replacement Water Filter Kit With Membrane by IPW Industries Inc. provides a complete one year supply of filters for your CTA-14S reverse osmosis system. This kit includes all pre and post filters as well as the membrane. Kit includes: Qty. 1 - S7011 Compatible Sediment Prefilter Qty. 1 - S1224RS CTA RO Membrane Qty. 1 - S7025 GAC Postfilter Note: Reverse osmosis membrane needs to be replaced every 2-3 years.