FREE Shipping!  Filter Replacement Set for EWS Five-Stage Reverse Osmosis System (RU500T35 w/ UV) 4-Pin UV Lamp Item No. Included in This Set: PRESED-05, GAC-00, RO-F-GAC-500, RO-F-INLINE, RO-M-TFC, UV-Lamp (4-Pin for Post-2011 Systems) Description: 5 micron pre-sediment filter, Granular activated carbon prefilter, Second specialty granular activated carbon prefilter, Granular activated carbon postfilter, TFC membrane, UV disinfection Replacement Schedule: Up to 1 year, not to exceed 1 year Filter Codes: 1, 6, 12, 16, 21, & 22 Special Note: EWS uses full-size, full bed depth, medical-grade filters for optimum performance and longer life   DO YOU NEED A 2-PIN UV OR 4-PIN UV? Look at your UV lamp's cord. Is it all white? Is it white and red stripe? If it is all white, you need a 2-pin. If it's red and white, you need a 4-pin. If you need further help, don't hesitate to contact us. We're here to help!   Handmade in the USA from USA-Made Parts