WTS vs LIQT vs FELE vs ERII vs XYL

For growth investors, LiqTech International, Inc.

(LIQT) is the stronger pick with 13. 0% revenue growth year-over-year, versus -7. 1% for Energy Recovery, Inc. (ERII). Energy Recovery, Inc. (ERII) offers the better valuation at 21. 7x trailing P/E (35. 1x forward), making it the more compelling value choice. Analysts rate Energy Recovery, Inc. (ERII) a "Buy" — based on 16 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Energy Recovery, Inc.

(ERII) is the cheapest at 21. 7x versus Franklin Electric Co. , Inc. at 30. 6x. On forward P/E, Xylem Inc. is actually cheaper at 20. 6x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Xylem Inc. wins at 0. 90x versus Franklin Electric Co. , Inc. 's 2. 48x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Watts Water Technologies, Inc.

(WTS) delivered a total return of +119. 0%, compared to -96. 1% for LiqTech International, Inc. (LIQT). Over 10 years, the gap is even starker: WTS returned +457. 2% versus LIQT's -91. 0%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), LiqTech International, Inc.

(LIQT) is the lower-risk stock at 0. 54β versus Energy Recovery, Inc. 's 1. 63β — meaning ERII is approximately 202% more volatile than LIQT relative to the S&P 500. On balance sheet safety, Energy Recovery, Inc. (ERII) carries a lower debt/equity ratio of 5% versus 117% for LiqTech International, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), LiqTech International, Inc.

(LIQT) is pulling ahead at 13. 0% versus -7. 1% for Energy Recovery, Inc. (ERII). On earnings-per-share growth, the picture is similar: LiqTech International, Inc. grew EPS 45. 7% year-over-year, compared to -15. 8% for Franklin Electric Co. , Inc.. Over a 3-year CAGR, XYL leads at 17. 8% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Energy Recovery, Inc.

(ERII) is the more profitable company, earning 17. 0% net margin versus -51. 7% for LiqTech International, Inc. — meaning it keeps 17. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: WTS leads at 19. 3% versus -50. 3% for LIQT. At the gross margin level — before operating expenses — ERII leads at 65. 2%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Xylem Inc. (XYL) is the more undervalued stock at a PEG of 0. 90x versus Franklin Electric Co. , Inc. 's 2. 48x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Xylem Inc. (XYL) trades at 20. 6x forward P/E versus 35. 1x for Energy Recovery, Inc. — 14. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ERII: 42. 4% to $13. 00.

In this comparison, XYL (1.

4% yield), FELE (1. 1% yield), WTS (0. 7% yield) pay a dividend. LIQT, ERII do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Watts Water Technologies, Inc.

(WTS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 92), 0. 7% yield, +457. 2% 10Y return). Energy Recovery, Inc. (ERII) carries a higher beta of 1. 63 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (WTS: +457. 2%, ERII: -14. 7%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

WTS, FELE, XYL pay a dividend while LIQT, ERII do not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.