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Sectors & IndustriesIndustrialsPollution & Treatment Controls
Best Pollution & Treatment Control Stocks to Buy Now (2025)
Top pollution & treatment control stocks in 2025 ranked by overall Zen Rating. "A" Rated stocks have returned an average of +32.52% per year, and are the best pollution & treatment control stocks to buy now. Learn More.

Industry: Pollution & Treatment Con...
OverviewZen RatingPriceValue
GrowthFinancialsMomentumSentimentForecastDividendsDue Diligence
B
Pollution & Treatment Controls is Zen Rated B and is the 51st ranked industry out of 145 stock market industries
Learn how the Zen Ratings work
Ticker
Company
Zen Rating
Price
Value
Graham Fair Value
Graham Fair Value %
P/E
Forward P/E
P/S
P/B
PEG
Free Cash Flow
Free Cash Flow Yield
Book Value
BVPS
EV
EV/EBITDA
ATMU
ATMUS FILTRATION TECHNOLOGIES INC
$53.71$21.53149.46%22.19x19.99x2.55x13.00x2.60x$127.60M2.90%$336.70M4.11$4.74B14.81
ZWS
ZURN ELKAY WATER SOLUTIONS CORP
$47.79$13.76247.36%42.29x31.45x4.84x5.03x2.42x$288.60M3.59%$1.59B9.47$8.28B22.39
FSS
FEDERAL SIGNAL CORP
$114.10$37.34205.60%29.41x27.33x3.37x5.25x2.80x$219.70M3.17%$1.32B21.77$7.13B17.92
FTEK
FUEL TECH INC
$1.61N/AN/A-17.89x-26.31x2.03x1.22xN/A$2.64M5.28%$41.01M1.32$36.95M-16.42
CECO
CECO ENVIRONMENTAL CORP
$60.66$9.17561.77%40.99x60.39x2.99x6.99x35.10x-$17.07M-0.80%$309.21M8.75$2.37B20.00
VLTO
VERALTO CORP
$102.64$31.84222.41%27.89x26.19x4.68x8.95x3.55x$986.00M3.87%$2.85B11.46$26.38B19.66
ERII
ENERGY RECOVERY INC
$13.81$8.5162.35%40.62x18.98x5.43x4.05x0.78x$19.93M2.72%$180.83M3.40$684.44M24.43
ADUR
ADURO CLEAN TECHNOLOGIES INC
$11.57N/AN/A-29.67x-20.83x2,314.00x27.73xN/A-$9.05M-2.54%$12.95M0.42$348.49M-31.59
ARQ
ARQ INC
$3.28N/AN/A-32.80x-30.20x1.16x0.64xN/A-$45.82M-33.57%$217.15M5.22$158.86M16.64
PCT
PURECYCLE TECHNOLOGIES INC
$9.12N/AN/A-6.81x-7.97x294.19x24.09xN/A-$194.99M-11.88%$68.22M0.38$1.84B-14.07
ZONE
CLEANCORE SOLUTIONS INC
$0.28N/AN/A-0.24xN/A2.86x0.32xN/A-$5.37M-72.00%$172.50M6.37$42.83M-2.31
CLIR
CLEARSIGN TECHNOLOGIES CORP
$0.60N/AN/A-5.03x-4.93x15.46x3.54xN/A-$3.89M-11.61%$9.08M0.16$21.82M-3.60
TOMZ
TOMI ENVIRONMENTAL SOLUTIONS INC
$0.80N/AN/A-3.19x-6.52x2.82x7.31xN/A-$569.97k-3.51%$2.21M0.11$19.09M-4.44
SCWO
374WATER INC
$0.23N/AN/A-1.92x-3.76x17.69x5.99xN/A-$14.30M-40.87%$6.50M0.04$39.39M-2.37
CLWT
EURO TECH HOLDINGS CO LTD
$1.25$0.58116.86%12.50xN/A0.63x0.61xN/A$776.00k8.08%$15.74M2.04$2.66M2.79
DEVS
DEVVSTREAM CORP
$1.31N/AN/A-0.42xN/A187.14x-0.30xN/AN/AN/A-$19.33M-5.15$16.88MN/A
LIQT
LIQTECH INTERNATIONAL INC
$1.98N/AN/A-1.98x-2.46x1.13x1.49xN/A-$6.55M-34.39%$12.81M1.33$24.94M-3.95
CHNR
CHINA NATURAL RESOURCES INC
$3.76N/AN/A-10.33xN/AN/A0.32xN/A-$1.02M-25.98%$12.15M11.60$3.51M-8.97
RAIN
RAIN ENHANCEMENT TECHNOLOGIES HOLDCO INC
$7.55$1.59M-100.00%0.00x-10.28xN/A-4.13x0.00x-$3.64M-6.36%-$9.58M-1.26$46.31M-8.34
1

Pollution & Treatment Control Stocks FAQ

What are the best pollution & treatment control stocks to buy right now in Dec 2025?

According to Zen Ratings, our proprietary rating system that evaluates 115 factors proven to drive growth in stocks and assigns each stock in our system an overall letter grade as well as 7 individual Component Grades for Value, Growth, Momentum, Sentiment, Safety, Financials, and proprietary AI algorithms, the 3 best pollution & treatment control stocks to buy right now are:

1. Atmus Filtration Technologies (NYSE:ATMU)


Atmus Filtration Technologies (NYSE:ATMU) is the #1 top pollution & treatment control stock out of 19 with a Zen Rating of A. Stocks with a rating of A have had an average return of +32.52% per year. Learn more.

The Component Grade breakdown for Atmus Filtration Technologies (NYSE:ATMU) is: Value: C, Growth: C, Momentum: C, Sentiment: B, Safety: B, Financials: A, and AI: C.

Atmus Filtration Technologies (NYSE:ATMU) has a Due Diligence Score of 41, which is 13 points higher than the pollution & treatment control industry average of 28.

ATMU passed 16 out of 38 due diligence checks and has strong fundamentals. Atmus Filtration Technologies has seen its stock return 37.58% over the past year, overperforming other pollution & treatment control stocks by 20 percentage points.

Atmus Filtration Technologies has an average 1 year price target of $52.33, a downside of -2.56% from Atmus Filtration Technologies's current stock price of $53.71.

Atmus Filtration Technologies stock has a consensus Buy recommendation according to Wall Street analysts. Of the 3 analysts covering Atmus Filtration Technologies, 33.33% have issued a Strong Buy rating, 33.33% have issued a Buy, 33.33% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

2. Zurn Elkay Water Solutions (NYSE:ZWS)


Zurn Elkay Water Solutions (NYSE:ZWS) is the #2 top pollution & treatment control stock out of 19 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% per year. Learn more.

The Component Grade breakdown for Zurn Elkay Water Solutions (NYSE:ZWS) is: Value: C, Growth: B, Momentum: C, Sentiment: B, Safety: A, Financials: B, and AI: B.

Zurn Elkay Water Solutions (NYSE:ZWS) has a Due Diligence Score of 35, which is 7 points higher than the pollution & treatment control industry average of 28.

ZWS passed 14 out of 38 due diligence checks and has average fundamentals. Zurn Elkay Water Solutions has seen its stock return 27.51% over the past year, overperforming other pollution & treatment control stocks by 10 percentage points.

Zurn Elkay Water Solutions has an average 1 year price target of $54.33, an upside of 13.69% from Zurn Elkay Water Solutions's current stock price of $47.79.

Zurn Elkay Water Solutions stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 3 analysts covering Zurn Elkay Water Solutions, 66.67% have issued a Strong Buy rating, 33.33% have issued a Buy, 0% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

3. Federal Signal (NYSE:FSS)


Federal Signal (NYSE:FSS) is the #3 top pollution & treatment control stock out of 19 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% per year. Learn more.

The Component Grade breakdown for Federal Signal (NYSE:FSS) is: Value: C, Growth: C, Momentum: C, Sentiment: C, Safety: C, Financials: A, and AI: B.

Federal Signal (NYSE:FSS) has a Due Diligence Score of 49, which is 21 points higher than the pollution & treatment control industry average of 28.

FSS passed 18 out of 38 due diligence checks and has strong fundamentals. Federal Signal has seen its stock return 25.87% over the past year, overperforming other pollution & treatment control stocks by 8 percentage points.

Federal Signal has an average 1 year price target of $127.33, an upside of 11.6% from Federal Signal's current stock price of $114.10.

Federal Signal stock has a consensus Hold recommendation according to Wall Street analysts. Of the 3 analysts covering Federal Signal, 0% have issued a Strong Buy rating, 33.33% have issued a Buy, 66.67% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

What are the pollution & treatment control stocks with highest dividends?

Out of 2 pollution & treatment control stocks that have issued dividends in the past year, the 2 pollution & treatment control stocks with the highest dividend yields are:

1. Federal Signal (NYSE:FSS)


Federal Signal (NYSE:FSS) has an annual dividend yield of 0.49%, which is the same as the pollution & treatment control industry average of 0.37%. Federal Signal's dividend payout is stable, having never dropped by more than 10% in the last 10 years. Federal Signal's dividend has shown consistent growth over the last 10 years.

Federal Signal's dividend payout ratio of 13.9% indicates that its dividend yield is sustainable for the long-term.

2. Atmus Filtration Technologies (NYSE:ATMU)


Atmus Filtration Technologies (NYSE:ATMU) has an annual dividend yield of 0.39%, which is the same as the pollution & treatment control industry average of 0.37%.

Atmus Filtration Technologies's dividend payout ratio of 6.4% indicates that its dividend yield is sustainable for the long-term.

Why are pollution & treatment control stocks up?

Pollution & treatment control stocks were up 0.07% in the last day, and up 1.9% over the last week.

We couldn't find a catalyst for why pollution & treatment control stocks are up.

What are the most undervalued pollution & treatment control stocks?

Based on the Valuation rating, one of the 7 components of a stocks overall Zen Ratings grade, which evaluates factors including estimated earnings yield, earnings before interest and taxes/enterprise value, cash flow yield, free cash flow to price, and price-to-earnings growth (PEG ratio), the 3 most undervalued pollution & treatment control stocks right now are:

1. Energy Recovery (NASDAQ:ERII)


Energy Recovery (NASDAQ:ERII) is the most undervalued pollution & treatment control stock based on its Valuation Rating of C. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Energy Recovery has a valuation score of 43, which is 23 points higher than the pollution & treatment control industry average of 20. It passed 3 out of 7 valuation due diligence checks.

Energy Recovery's stock has dropped -6.88% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -24 percentage points.

2. Atmus Filtration Technologies (NYSE:ATMU)


Atmus Filtration Technologies (NYSE:ATMU) is the second most undervalued pollution & treatment control stock based on its Valuation Rating of C. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Atmus Filtration Technologies has a valuation score of 29, which is 9 points higher than the pollution & treatment control industry average of 20. It passed 2 out of 7 valuation due diligence checks.

Atmus Filtration Technologies's stock has gained 37.58% in the past year. It has overperformed other stocks in the pollution & treatment control industry by 20 percentage points.

3. Veralto (NYSE:VLTO)


Veralto (NYSE:VLTO) is the third most undervalued pollution & treatment control stock based on its Valuation Rating of C. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Veralto has a valuation score of 29, which is 9 points higher than the pollution & treatment control industry average of 20. It passed 2 out of 7 valuation due diligence checks.

Veralto's stock has dropped -0.24% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -18 percentage points.

Are pollution & treatment control stocks a good buy now?

60% of pollution & treatment control stocks rated by analysts are a buy right now. On average, analysts expect pollution & treatment control stocks to rise by 19.22% over the next year.

10% of pollution & treatment control stocks have a Zen Rating of A (Strong Buy), 30% of pollution & treatment control stocks are rated B (Buy), 30% are rated C (Hold), 0% are rated D (Sell), and 30% are rated F (Strong Sell).

What is the average p/e ratio of the pollution & treatment controls industry?

The average P/E ratio of the pollution & treatment controls industry is 28.76x.
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