PNR vs WTRG: How Pentair plc and Essential Utilities Compare (2026)

Same yardstick, side by side (as of July 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: PNR is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. PNR and WTRG share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined PNR and WTRG exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Pentair plc is a roughly $4 billion revenue water treatment and flow company that most consumers know through its Pool segment, which makes pumps, filters, heaters, automation, and sanitization gear for residential and commercial swimming pools. Beyond pools, the Water Solutions segment sells residential and commercial water treatment (softeners, filtration, and quality systems) plus, after a January 2026 reorganization, the residential and irrigation flow business, while the Flow segment covers industrial, agricultural, and municipal pumps and fluid-handling equipment. As of July 2026 Pentair carries a market capitalization near $12 billion and trades around the high $70s, well off its 52-week highs above $110.

Full PNR guide

Essential Utilities, based in Bryn Mawr, Pennsylvania and formerly known as Aqua America, is one of the largest publicly traded regulated water and wastewater companies in the United States. Through its Aqua brand it serves roughly 5.5 million water and wastewater customers across nine states, and through its Peoples brand it delivers natural gas to about 747,000 customers concentrated in western Pennsylvania. Earnings come almost entirely from regulated rates, so growth is driven by heavy infrastructure spending (about $1.4 billion invested in 2025) that expands the rate base regulators allow it to earn a return on.

Full WTRG guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• PNR drivers: Pool as the profit and growth engine; Transformation and margin expansion.
• WTRG drivers: Pending American Water merger; Rate-base growth from infrastructure spending.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Pool and water-treatment demand is cyclical and sensitive to housing activity, discretionary spending, and interest rates, and new-pool construction has been soft, which pressures volumes. For WTRG, the largest single risk is merger-specific: if remaining regulatory approvals are delayed, conditioned, or denied, WTRG would revert to trading on its standalone fundamentals, and the merger agreement carries termination fees ($370 million potentially payable by Essential, $835 million by American Water under specified circumstances).

Pick PNR if you believe its drivers more; WTRG if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the PNR and WTRG guides.

PNR. Pentair trades around the high $70s in July 2026, well below its 52-week high above $110, at roughly 19 times earnings with a dividend yield near 1.4 percent. Revenue has grown only modestly (Q1 2026 sales up about 3 percent to roughly $1.04 billion), so the earnings story is powered by margin expansion and price rather than volume. The valuation reflects a quality industrial compounder whose growth has cooled, leaving investors to judge whether margins and pool demand hold up.

WTRG. WTRG trades like a regulated utility, valued on stable earnings and its dividend rather than rapid growth, and full-year 2025 revenue rose about 19 percent to roughly $2.5 billion, helped by rate recoveries and higher gas costs. With the American Water merger approved by shareholders, the stock's valuation increasingly reflects the fixed 0.305 exchange ratio and the roughly Q1 2027 expected close. Reported quarterly EPS can swing on non-recurring items and merger-related expenses, so headline comparisons should be read carefully.

Headline figures (approximate, July 2026): PNR shows revenue (ttm) ~$4.1B, q1 2026 sales ~$1.04B (up ~3%), adjusted eps (2025) ~$4.86, 2026 adjusted eps guidance ~$5.30 to $5.40; WTRG shows revenue (fy2025) ~$2.5B, net income (fy2025) ~$616M, eps (fy2025) ~$2.20, market cap ~$11B.

PNR and WTRG are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined PNR and WTRG exposure against your real portfolio. It is not an investment adviser.