- 2016 Improved. We have our brass regulator after examining different reviews ; Our novel nonleaded regulator contains a more long-lived pressure gauge with oil to prevent friction of intrinsic components, particuarly squat tip content, well under the tip emancipated requirement, and comes with a 1 Year WARRANTY. - tip. This regulator was to contain lowest amount of tip of any regulator on the market. Each batch of regulators is to contain less than .13 % tip, well under the NSF nonleaded requirements of .25 %. us for a copy of our testing certification. - Regulator gauge oil to reduce friction of intrinsic components and greatly increases the life of the product. - harmonious with all U.S. water sources, including 3/4 '' garden hose and NH threads. us for any compatibility questions by clicking on our store name, `` Cartlee '', and clicking on the ask a question button. - adaptable up to 160. with smooth installation guide. us for an added copy of the guide or upper-class ascendency test.