Simpure Whole House Water Filter Housing (Db10P), 10" X 4.5", Pressure Release Product Details PREMIUM QUALITY - Tested against NSF standards. The whole house water filter housing is made of reinforced polypropylene for strength and resistance to chemicals. Food grade material makes all filtered water is safe and healthy. UPGRADE DESIGN - Compared to other inline water filter housing for leakage complaints, SimPure's filter housing thicken and raises the threaded holes, making sure no water leaks from the mounting hole after long-term use. EASY INSTALLATION - The big filter housing blue comes with all tools required for installation, including a wrench, heavy-duty steel mounting bracket, 4 screws. The built-in red pressure-relief button for water pressure release, making it easier for filter replacement. 1" NPT PORT - The big water filter housing blue with 1" NPT thread. Per your water quality, you can choose the sediment filter, carbon water filter, etc for the DIY installation of the whole housing water filtration system. COMPATIBLE CARTRIDGES - The SimPure DB10 big housing blue fits for universal standard 4.5 ? x 10 ? filters cartridges, like SimPure CTO-F10B-5 (Search for B07QTGZYM9), MPP-F10B-5 (Search for B07QTGYQBC), Culligan R50-BBSA, CW25-BBS, CP5-BBS, DGD 5005, GAC-BB, R50-BB, Geekpure PP10-BB-5, ICEPURE 43215-4209, Aqua-pure KW811-4PACK, Geekpure, iSpring, Ronaqua, Hydronix, etc. Also fits for the whole house water filtration system. (Filter cartridges are sold separately) About O-ring: If you need an O-ring suitable for DB10P, please search for B09TR53SD1. Tips: Given the large size of this whole house water filter housing, please consider the space required to install and replace the filter element according to the size of the product, whether it is suitable for your installation area. 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.