Thanks, Bob. I am on Slide 4, which shows the first quarter's comparative results. Sales of $379 million were up 9% on a reported basis in a first quarter record for Watts. Organically, sales were up 4% with growth in all regions. Foreign exchange, primarily driven by a stronger euro, increased year-over-year sales by roughly $17 million or 5%. Product rationalization, as expected, was approximately $2 million or a 60 basis points headwind in the quarter. Adjusted operating profit increased 14% to $44 million. Adjusted operating margin of 11.6% was up 50 basis points and represents a Q1 record. Volume, price and productivity more than offset $2 million of growth investment and inflationary pressures from commodities and transportation cost. Foreign exchange contributed about $2 million or 5% of the profit increase year-to-year. Adjusted EPS of $0.82 increased 26% over last year, and was another first quarter record for Watts. The increase was driven by operational improvements of 11%, a favorable tax rate of 9% and favorable FX movements of 6% as compared to last year. The effective tax rate of 28.2% is about 500 basis points lower than Q1 last year, and relates primarily to the benefits of tax reform. Turning to cash; as you know, historically, Q1 is a slower period for cash flow, and that played out as expected. Our free cash outflow for the quarter was $33 million as compared to a $15 million outflow in Q1 last year. The majority of the incremental outflow relates to timing of working capital outlays, in particular inventory incentive payments. Important to note, while the first quarter is seasonally slow, we fully expect our cash generation to improve as the year progresses, and to achieve greater than 100% cash flow conversion for the year. During the quarter, we repatriated approximately $71 million in cash. The majority of that cash was used to pay down our line of credit. In addition, we purchased approximately 80,000 shares of our common stock at a cost of $6.2 million. In total, we returned approximately $13 million in Q1 to shareholders in the form of dividends and share repurchases as part of our balanced capital deployment strategy. So overall, a good start to 2018. We delivered record sales, operating margin and EPS, and we continue to see organic sales growth trend positively. Now turning to the Regions; on Slide 5, let's review the Americas results for the quarter. Sales were $241 million, up 5% on both the reported and organic basis. We saw a strong performance from our core plumbing well products like backflows, regulated and the relief valves. Heating and Hot Water solution sales increased low double digits during the quarter lead by AERCO boiler and aftermarket sales and some favorable comps. Adjusted operating profit was $36.4 million, up 8% over Q1 last year. Operating margin was 15.1%, a 40 basis point increase over last year driven by volume, price and productivity. Margin expansion was partially tempered by higher commodity costs, transportation cost, product mix and continued growth investments. It was a strong start for the Americas with growth in the number of key products and platforms. Now on to Slide 6; let's review Europe's results. Sales of $123 million were up 17% on a reported basis, and up 2% organically. Foreign exchange positively affected sales by approximately $16 million or 15%. From a platform perspective, we had growth in both Drains and fluid solutions. Drains benefited from strong project sales into the hospital, industrial end-markets, as well as stronger marine-based business sold into shipyards. Within Fluid solutions, the sales increase was driven by valve products, including backflows and check valves, offset partially by software electronic sales and known headwinds associated with product rationalization. Recall that we had expected Europe sales in Q1 to be at the low-end of our 1% to 3% full year growth range due to fewer shipping days. Stronger Drains sales driven by project timing helped to overdrive those expectations. Regionally, we saw solid growth in some of our key regions such as Scandinavia and Italy. France and Germany were flattish for the quarter driven by product rationalization plans and Drains project timing in Germany. We saw continued softness in the U.K. which was down double digits due to lower volumes, pricing pressures and a product line exit. Adjusted operating profit for the quarter was $14.9 million, an increase of 18%, which includes a 15% foreign exchange tailwind. Operating margins of 12.1% increased slightly as compared to Q1 of last year. Margin expansion was driven by higher volume and productivity, and was mostly offset by higher commodity cost, unfavorable product mix and incremental investments. We do expect Europe's margin expansion to improve as the year progresses. Moving to Slide 7, let's review Asia-Pacific's results. Sales were just over $14 million in the quarter, up 6% on a reported basis, and up 3% organically over the same period last year. Excluding product rationalization, organic sales increased 8%. Sales outside of China, which represents over 7% of Asia-Pacific sales in the quarter, increased organically by 11%. The increase was driven by strength in New Zealand, the Middle East and Korea due to higher demand for our plumbing and HVAC products. China sales, excluding product rationalization, were up 1% as continued demand for our commercial valves sold into data centers and semiconductor markets, was mostly offset by softness in under floor Heating products. Adjusted operating profit was $1.4 million in Q1, which translates to adjusted operating margin of 9.4%. The key drivers of the margin expansion were higher third-party volume, product and country mix and cost-saving, partially offset by commodities, lower affiliate sales and investments. As expected, a little bit of a slow start to the year for Asia-Pacific. We think it is more timing than anything else, as growth should accelerate in the out quarters. Now just a quick update on our full year outlook. Slide 8 provides the details, and I will highlight a few points. As Bob discussed, our common assumptions are pretty much aligned with the original outlook we provided in February, except that we now expect Americas' organic sales growth should be at the higher-end of 3% to 5% growth range. Sales in the other regions are falling in line with our previous outlook. We expect operating margins should grow between 50 and 70 basis points, which includes incremental investments to support future growth initiatives. I'd like to point out that we are currently maintaining our full year effective tax rate at approximately 28%. However, the rate in Q1 was a little bit higher at 28.2%. We may have to adjust the rate in the future based on further analysis as additional information and guidance on the new regulations become available. And as I just mentioned, we anticipate free cash flow for the year converting at or above 100% of net income. Before I turn the call back over to Bob, a few items to keep in mind regarding the second quarter. We're expecting consolidated organic growth in the second quarter to be in line with our full year expectation. Product rationalization should approximate $2.5 million in Q2, $1.5 million in Europe and $1 million in Asia-Pacific. We expect incremental investments of $3 million to $4 million in Q2, approximately $2 million in Americas, $1 million in Europe and approximately $500,000 in Asia-PAC. The investments will be partially offset by approximately $1 million in incremental restructuring savings, about $500,000 each in the Americas and Europe. Consolidated operating margin in Q2 should grow in line with our full year expectations. Finally, foreign exchange may also be a tailwind when compared to Q2 last year given the current euro-dollar exchange rate. So with that, let me turn the call over to Bob before we begin Q&A. Bob?