4 STAGE RO/DI AQUARIUM REVERSE OSMOSIS WATER FILTERS AND 100 GPD MEMBRANE4 STAGE RO/DI AQUARIUM REVERSE OSMOSIS WATER FILTERS AND 100 GPD MEMBRANEFILTER SET INCLUDES:1 SEDIMENT FILTER 5 MICRON 2.5" X 9.75"1 CARBON BLOCK 5 MICRON 2.5" X 9.75"1 DI FILTER - DEIONIZATION RESIN WITH COLOR INDICATOR REFILLABLE CARTRIDGE.1 - MEMBRANE (100 Gallons Per Day)GREAT REPLACEMENT FILTERS AND MEMBRANE KITTerms & ConditionsWe accept Paypal. You may also use your Visa, Mastercard, American Express, or Discover card through Paypal. When you are ready to pay, Simply click the "Pay Now" button at the top of the eCRATER item page to submit a secure payment through checkout. All items ship via FEDEX GROUND /USPS/UPS GROUND within 1 business day upon receiving of payment, however we are not responsible for transit time and delays. Shipping is free for 48 States. We do not inflate shipping rates, however in order to save you money we will automatically combine shipping on orders with more than one item whenever possible, this is not guaranteed for large items. eCRATER checkout automatically combines the shipping charges. Please contact us with any questions. International Customers, Please note that customs/duty/brokerage fees are your responsibility. We will provide shipping tracking numbers for all international shipments. We do not know what your customs duty are.Terms & ConditionsFor Refund or Replacement Of Parts, Must OccurWithin 30 Days, Of The Date, The Item is Delivered To You. Used Or Installed Items Are Not Returnable. Inspect Your Items & Packing Carefully Upon Delivery. If Your Item Is ReceivedDamaged Or Defective, Prior To Installation, Please Notify Use Over eCRATER Messaging As Soon As Possible Within 30 Days Time Frame, We RecommendSending Us Pictures Of The Problem To Speed Up The Process. Item Do Not Include InstallationManuals Unless SpecificallyListed In Item Details, or Description. Most Issues Can Be Resolved Over A Few Messages Over eCRATER. We Do Not Accept Returns From International Customer. For InternationalCustomers, Please Contact eCRATERGlobal Shipping Service As All Of Are International Ship Are Shipped ThroughThat Service.