hot do i replace the filters on my hydrologic stealth ro 200

i have no idea how to replace these things i tried to twist them off but no luck does anybody know how to replace them the right way its a carbon and a sediment filter ill try to put pics up if ya have no idea of what im talking about

They make a special plastic wrench to get them off easily. Here is a photo of one of the wrenchs. http://www.thefilterguys.biz/accessories.htm A plumbing supply store will have them and very likely Home Depot or Lowes as they sell RO filters and canister filters.

If you bought it new, it should have come with the canister wrench. If you bought it used, they should have given you the canister wrench. If you can't find a proper wrench you could probably use a strap wrench, or maybe even a large(ish) oil filter wrench, to get them off and back on.

yup, need that wrench...then quarter turn to the left..falls right out.