4 Pack of Compatible Filters for RV Trailer Camper Fresh Water 10 Carbon Paper Filter SHURflo 155002-43 by CFS 4 Pack of Compatible Filters for RV Trailer Camper Fresh Water 10 Carbon Paper Filter SHURflo 155002-43 by CFS 4) NSF Certified 5 Micron Carbon Filters Fits most brand housings Filter cartridge reduces chlorine, sediment, unpleasant taste/odor and VOC's