Whirlpool Whole Home Water Filtration System | Whkf-Dwh, Stainless Steel Inlets Product Details Whirlpool Genuine Parts: This whole home filtration system provides clean, fresh water throughout the entire house for drinking, cooking, bathing, and cleaning. Ideal for households of 1-4 persons. Replacement filter NOT included. 3/4" Inlet: Featuring stainless steel inlets that lasts longer than the plastic ones. Additional fitting adapters may be required depending on the sizes of plumbing pipes. Built-in Value: Featuring a pressure relief button, this water filtration system reduces water sputtering at faucet and provides an easy solution for filter replacement. Also replaces WHCF-DWH. NSF Tested and Certified: A water filtration system you can trust ? certified by the National Sanitation Foundation International against NSF/ANSI Standard for material safety and structural integrity. For cold water use only. Optimal Maintenance: For best filtration results, it is recommended to use Whirlpool genuine replacement filters WHKF-GD05/WHSW/WHWC/WHPL. For installation, Whirlpool WHKF-B6 housing mounting bracket provides additional support. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.