APEC RO Replacement Filters Complete Filter Set for ULTIMATE RO-CTOP and RO-CTOP-C Countertop Reverse Osmosis Systems (Stages 1-4)

Sale price$124.95 USD

  • APEC high capacity pre-filter set is USA made with quick connect fittings for easy replacements
  • Includes (1) sediment,  (2) coconut shell carbon, and (1) Dow Filmtec Membrane
  • High performance replacement filters compatible with all standard countertop RO systems

APEC ULTIMATE Complete 4-Stage High Capacity Filter Set

APEC high capacity filter set is made in USA with high quality filtration components to provide a longer lasting filter set to protect and prolong the lifespan of your reverse osmosis system. Premium quality pre-filters and 4th stage filter lasts 6-12 months for high performance contaminant removal. These standard size filters are 10 Inch and feature ¼" quick-connect fittings for durable and easy filter change-outs. These filters are compatible with APEC's Countertop reverse osmosis drinking water system (RO-CTOP & RO-CTOP-C).

All US Made Super High Capacity Filters

1st Stage: High-capacity 10 Inch inline polypropylene sediment depth filter will effectively remove dirt, sand and sediment from the water. Recommend changing every 6-8 months.

2nd Stage: High capacity 10 Inch inline coconut shell carbon filter to remove chlorine, tastes, odors, cloudiness and colors. Recommend changing every 6-8 months.

3rd Stage: Select FILMTEC (Dow Chemical) High Rejection TFC reverse osmosis membrane. Removes up to 99% of total dissolved solids (TDS) and contaminants such as arsenic, lead, fluoride, chromium, radium, bacteria, viruses and much more. Recommend changing every 3-5 years.

4th Stage: High capacity 10 Inch inline coconut shell carbon filter. Recommend changing every 2-3 years.

For over 20 years, APEC has been an industry leading manufacturer of high performance RO systems.

Specification Table

Part Number


Item Weight

4 pounds

RO-CTOP Filter Set Includes

(1) Quick-Connect Sediment Filter, (2) Quick-Connect Carbon Filter and (1) Dow Filmtec Membrane

Item Package Quantity

1 Set