Watts Pure Water PWHIB20FF 20 Inch Full Flow Housing Kit Whole House Filtration. Brand: Watts Pure Water. 20 inch full flow housing kit with pressure relief. Accepts 4-1/2 inch by 20 inch filter. 1 inch NPT inlet/outlet. Box states high-quality FDA grade polypropylene. Polypropylene cap and sump. Maximum temperature 100 degrees Fahrenheit. Maximum pressure 100 PSI. Includes: wrench, mounting bracket, and mounting hardware. Label states lead free. Product taken out of box for pictures, box is slightly damaged but product is fine. Box states do not use with water that is microbiologically unsafe or of unknown quality. From store we are liquidating. Please do not check out until we send you a revised invoice! We are a liquidator. We get terrific savings on our merchandise and strive to pass those savings on to you. BluePennyLady is a husband and wife team (Dale and Judy). We run a super fun business. It’s a lot of hard work at times, but the fun makes it worthwhile. We have been doing this for 30+ years. We are not a fly-by-night operation. We have an exceptional staff who are courteous, prompt, professional, and genuinely care about our customers. We are located in a small town in the middle of wheat and soybean fields. When we’re not focusing on our business you can find us relaxing on the farm- riding horses, swimming, or taking the 4-wheeler out for a spin. You’ll see my husband and I in church every Sunday accompanied by our beautiful family. We wouldn’t trade this for anything!