FREE Shipping!  Filter Replacement Set for EWS Five-Stage Reverse Osmosis System (RU500T35) Item No. Included in This Set: PRESED-05, GAC-00, RO-F-GAC-500, RO-F-INLINE, RO-M-TFC Description: 5 micron pre-sediment filter, Granular activated carbon prefilter, Second specialty granular activated carbon prefilter, Granular activated carbon postfilter, TFC membrane Replacement Schedule: Up to 1 year, not to exceed 1 year Filter Codes: 1, 6, 12, 21, & 22 Special Note: EWS uses full-size, full bed depth, medical-grade filters for optimum performance and longer life   Made in the USA