If you rely on well water, keeping your water supply free from bacteria and contaminants is a top priority. A Stenner pump for chlorine injection offers a precise, reliable way to disinfect your water. In this guide, we review the top Stenner models for 2026 to help you choose the right chlorine injection pump for your home or business. Whether you are a homeowner or a professional, understanding the key features of these pumps will ensure you get the performance you need. For more on well water systems, visit our Well Pumps resource.
Pros
- Adjustable flow range covers both small and moderate dosing needs
- Comes with all essential accessories for immediate installation
- Simple peristaltic mechanism requires minimal upkeep
- Solid build quality from a trusted brand in water treatment
- Easy to prime and self-priming capability
Cons
- Higher initial cost compared to basic injection pumps
- Only one customer review available, limiting long-term feedback
- Plastic housing may not withstand harsh outdoor conditions without protection
The Stenner Pump 45m1 (model 45MJL1A2S) is a peristaltic metering pump designed for precise chemical injection, particularly chlorine. It targets water treatment professionals, pool operators, and well owners who need consistent dosing without frequent maintenance.
Its standout feature is the adjustable head, allowing flow rates from 0.2 to 3 gallons per day. This flexibility suits both chlorination and other chemical feed applications. The pump operates at 25 psi, enough to inject into pressurized lines. Included accessories like the check valve, strainer, and 20 feet of tubing simplify installation.
Build quality is typical of Stenner: a rugged plastic housing and Santoprene tube resist chemical wear. The peristaltic design means no seals or valves to fail, reducing downtime. The 120V motor runs quietly and reliably. However, the plastic casing may not be UV-stable for prolonged outdoor use without a cover.
A potential drawback is the lack of extensive user reviews; only one rating exists. The price is higher than generic pumps, but the complete kit and brand reputation justify the investment for critical applications. The pump is corded electric, so a nearby outlet is required.
Verdict: The Stenner Pump 45m1 is a premium choice for accurate chlorine injection. Its adjustability, included accessories, and low-maintenance design make it ideal for professionals. If you need a dependable metering pump and budget allows, this is a solid investment.
Pros
- High pressure rating of 100 psi for versatile applications
- Easy tube changes with the fixed head design
- Durable stainless steel build resists corrosion
- Consistent flow rate for accurate chemical metering
- Positive user feedback highlights improved design and ease of maintenance
Cons
- Some users report frequent tube replacements (monthly) in heavy-use scenarios
- Motor durability concerns after extended use, as noted in a critical review
- Fixed head limits flow rate adjustment flexibility compared to variable-speed models
The Stenner 85MPHP17 is a fixed-head peristaltic pump built for precise chemical injection, particularly chlorine, in water treatment systems. With a flow rate of 17 gallons per day and a pressure rating of 100 psi, it targets professionals who need reliable dosing without constant adjustments.
Standout features include its robust stainless steel construction and straightforward fixed-head design. Users praise the improved tube-changing mechanism, which reduces maintenance effort. The pump operates on standard 120V power, making it easy to integrate into existing setups.
Real-world performance is generally strong, with consistent flow rates that meet the demands of pool chlorination and emergency water treatment. However, one long-term user reported tube replacements every month and motor failure after the warranty period, suggesting variable reliability in continuous high-use environments.
Build quality is solid overall, with corrosion-resistant materials that should withstand harsh chemicals. The fixed head limits flow adjustment but simplifies operation for those who need a set dosing rate. It's a trade-off between simplicity and flexibility.
Verdict: The Stenner 85MPHP17 is a capable pump for routine chlorine injection, especially if you value durability and easy maintenance. Be aware of potential tube wear and motor longevity issues if running it heavily. It's a solid choice for water treatment pros who need a dependable fixed-speed solution.
Pros
- Highly adjustable flow rate allows precise dosing for various applications.
- Durable Santoprene tube and 100 PSI rating ensure long-lasting performance under pressure.
- Easy tube replacement with new head design simplifies maintenance.
- Quiet operation and compact design fit well in residential settings.
- Complete kit includes all necessary components for straightforward installation.
Cons
- Some units may arrive with missing parts, though the seller typically resolves promptly.
- FedEx shipping can be unreliable with poor tracking, causing delays.
- Instructions could be more detailed for first-time users unfamiliar with peristaltic pumps.
The Stenner 45MJH2A1S peristaltic pump is a top choice for homeowners and professionals needing precise chemical injection for water treatment. Designed for chlorine, hydrogen peroxide, and other solutions, it excels in pool chlorination, well water treatment, and industrial dosing.
Standout features include an adjustable flow rate from 0.5 to 10 GPD and a 100 PSI pressure rating, ensuring reliable injection into pressurized lines. Real-world users praise its quiet operation and consistent performance, with many reporting over a decade of trouble-free use.
The pump's build quality is robust, featuring a Santoprene tube that resists chemicals and wear. The updated head design allows quick tube changes without tools, making maintenance simple. The included kit adds value with all necessary components for installation.
Potential drawbacks include occasional shipping issues and missing parts, though the seller is responsive. The instructions may be sparse for beginners, but the pump's straightforward operation compensates.
Overall, the Stenner 45MJH2A1S is a reliable, adjustable, and durable peristaltic pump that delivers excellent value for precise chemical dosing. Its ease of maintenance and long lifespan make it a worthwhile investment for any water treatment system.
Brand: Stenner Pump Company
Model: 45MJH2A1S
Flow Rate: 0.5 to 10 GPD (36 liters per day maximum)
Pressure Rating: 100 PSI
Voltage: 120 Volts AC, 60 Hz
Tube Material: Santoprene
Suction/Discharge Tubing: 1/4 inch
Included Kit: Mounting bracket, three connecting nuts, three ferrules, injection check valve, weighted strainer, 20 feet of white tubing, and one spare pump tube
Power Source: Corded Electric
Style: Above Ground
Pros
- Reliable fixed-speed dosing ensures consistent chemical delivery
- High pressure rating handles long tubing runs and backpressure
- Simple, robust design reduces maintenance needs
- Compatible with common chlorine injection systems
- Brand reputation for durability and performance
Cons
- Fixed speed limits flow adjustment without additional controls
- Motor and pump head only, requiring separate controller or timer for automated dosing
- May need additional fittings or tubing for complete installation
The Stenner Pump 85MPHP17 is a dedicated chlorine injection pump designed for water treatment professionals. It combines a fixed-speed motor and pump head rated at 17 GPD and 100 psi, making it ideal for consistent chemical dosing in residential or light commercial systems.
Its standout feature is the high pressure capability, allowing reliable injection even against line pressure. The fixed speed ensures predictable flow, which is critical for maintaining proper chlorine residuals. Users appreciate the straightforward design that integrates easily into existing setups.
Build quality is typical of Stenner products, with durable materials and a compact footprint. The unit weighs under 8 pounds and measures just 6x10x6 inches, simplifying mounting. The motor runs on standard household voltage, reducing electrical complexity.
A key drawback is that this is only the motor and pump head, so you must supply your own controller, tubing, and injection fittings. The fixed speed also means you cannot adjust output without adding a variable speed drive or timer.
Overall, the Stenner Pump 85MPHP17 is a solid choice for those needing a reliable, high-pressure chlorine injection pump. It delivers on performance and durability, though it requires additional components for a complete system. Experienced installers will find it a worthwhile investment.
Pros
- Adjustable flow from 2 to 40 gpd covers a wide range of dosing needs
- 100 psi pressure rating allows injection into high-pressure water lines
- Quiet operation confirmed by a verified buyer review
- Complete kit includes spare tube, check valve, strainer, and mounting bracket
- Runs on standard 120V power for simple installation
Cons
- Mixed customer feedback due to limited reviews and one report of premature failure
- Warranty support may depend on the seller; third-party sellers can be unresponsive
- No flow meter or digital controls included; requires manual adjustment
The Stenner 85MJH7A1S is a peristaltic metering pump designed for precise chlorine injection in water treatment systems. It suits homeowners, small farms, and light commercial applications needing consistent chemical dosing at up to 100 psi.
The pump delivers 2 to 40 gallons per day with an adjustable head, giving you control over feed rates. Users report it runs quietly, a welcome improvement over older pumps. The Santoprene tube resists chemical wear and the kit includes a spare tube for quick replacement.
Build quality is typical Stenner, with a sturdy above-ground design and a mounting bracket. The 1/4 inch tubing and accessories, including a weighted strainer and injection check valve, get you set up quickly. It runs on standard 120V power.
However, the product has mixed feedback. One buyer experienced failure after six months and struggled to get warranty support from the seller, so confirm your seller's return policy before buying. With only a handful of reviews, long-term durability is not fully proven.
Verdict: The Stenner 85MJH7A1S offers reliable peristaltic dosing with quiet operation and useful accessories, but buy from a reputable seller and verify warranty coverage to avoid disappointment.
Model Number: 85MJH7A1S
Pump Type: Peristaltic Metering Pump
Flow Rate: 2 to 40 gallons per day (adjustable)
Pressure Rating: 100 psi
Voltage: 120V AC, 60 Hz
Tubing Size: 1/4 inch suction and discharge
Tube Material: Santoprene
Power Source: Corded Electric
Mounting: Includes mounting bracket for above-ground installation
Kit Includes: Three 1/4 inch connecting nuts, three ferrules, one injection check valve (100 psi), one weighted suction line strainer, 20 feet white tubing, one spare pump tube, and mounting bracket.
Pros
- Simple fixed-speed operation reduces complexity and maintenance
- High 100 PSI pressure rating suitable for injection into pressurized lines
- Compact design fits easily into existing treatment setups
- Proven peristaltic technology handles corrosive chemicals reliably
Cons
- Low customer rating of 3.4 out of 5 stars suggests potential quality or consistency issues
- Only 7 reviews available, making it hard to gauge long-term reliability
- Motor and pump head only; tubing and fittings sold separately adds to total cost
The Stenner 85MFH1 is a fixed-head peristaltic metering pump designed for precise chemical injection, particularly chlorine dosing in above-ground water systems. Rated at 5 gallons per day and 100 PSI, it suits residential or light commercial applications where consistent, low-volume dosing is required.
Its fixed-speed motor eliminates the need for variable controls, making setup straightforward for technicians who prefer a no-frills approach. The peristaltic design uses a rotating roller to squeeze tubing, ensuring accurate flow without check valves or filters. This pump is built for durability, with Stenner's reputation for industrial-grade components.
Performance is steady, but the 3.4-star rating from only 7 reviews raises caution. Some users may have experienced issues with tubing wear or pressure consistency over time. The above-ground style allows easy access for maintenance, but the pump head and motor are sold as a unit, requiring additional purchase of tubing and fittings.
For professionals needing a reliable chlorine injection pump at a fixed rate, the 85MFH1 offers a cost-effective solution. However, the limited positive feedback suggests verifying compatibility with your specific chemical and pressure requirements before purchase.
Overall, this pump is a solid choice for those familiar with peristaltic technology and willing to source additional components. It delivers on its core specs but may not be ideal for beginners or applications needing variable flow rates.
Pros
- Highly adjustable flow rate offers precise control for various dosing needs
- Stainless steel and Santoprene materials ensure durability and chemical resistance
- Quick-release head simplifies maintenance and reduces downtime
- Self-priming design guarantees reliable startup even after long periods of inactivity
Cons
- Requires 220V power supply, which may not be available in all residential settings
- Premium price point may be a barrier for budget-conscious buyers
- Limited to lower flow rates (up to 17 GPD), not suitable for high-volume applications
The Stenner 85MHP17 Chemical Metering Pump Kit is a professional-grade peristaltic pump designed for precise chemical dosing in swimming pools, water treatment systems, and industrial processes. It is best suited for operators who need consistent, adjustable flow rates and reliable performance with chlorine-based chemicals.
Standout features include a variable feed rate dial with 10 settings ranging from 0.8 to 17 gallons per day, allowing fine-tuned control. The self-priming peristaltic action isolates the fluid from internal parts, minimizing wear and maintenance. In real-world use, users report steady dosing and easy setup, especially with the included 20-foot tubing and mounting bracket.
Build quality is robust, featuring a stainless steel frame and a clear pump head for visual flow confirmation. The quick-release tube design makes replacing the Santoprene tubing simple, which is critical for handling sodium hypochlorite. The 220V/60Hz motor ensures consistent power delivery for continuous operation.
Potential drawbacks include the need for a 220V outlet, which limits installation locations, and the higher cost compared to basic diaphragm pumps. Additionally, the flow range, while adequate for many applications, may be too low for large-scale commercial systems. Some users might find the initial setup requires careful calibration.
Overall, the Stenner 85MHP17 is a reliable, durable choice for those who demand precision and longevity in chemical metering. Its ease of maintenance and chemical compatibility make it a worthwhile investment for pool professionals and water treatment specialists. If your application fits within its flow range and power requirements, this pump delivers consistent results.
Pros
- Adjustable flow rate provides precise chemical dosing.
- High pressure rating allows use in demanding applications.
- Includes essential accessories for immediate setup.
- Santoprene tubing offers excellent chemical compatibility.
- Low-maintenance peristaltic operation.
Cons
- Maximum flow rate of 10 gallons per day may be insufficient for large-scale systems.
- Requires a dedicated 120V outlet, which may not be available in all installations.
- As a specialized injection pump, it may have a learning curve for new users.
The Stenner 45MJH2A4S is a professional-grade peristaltic metering pump designed specifically for chlorine injection. With an adjustable flow rate from 0.5 to 10 gallons per day and a 100 psi pressure rating, it delivers precise chemical dosing for water treatment systems, swimming pools, and irrigation lines. This pump is an excellent choice for homeowners, well owners, and small-scale commercial operators who need reliable, consistent chlorine delivery.
Standout features include the adjustable head, which allows fine-tuning of the chemical feed rate without changing pump tubes. The Santoprene tubing is highly resistant to chlorine degradation, ensuring long service life. The included installation kit, complete with mounting bracket, tubing, check valve, and strainer, simplifies setup, making it accessible even for DIY enthusiasts.
In real-world performance, this pump lives up to its specifications. The 100 psi pressure capability means it can inject chlorine into pressurized water mains without backflow issues. The peristaltic design eliminates seals and valves that can clog, resulting in minimal maintenance and consistent output. Users can expect a reliable, continuous dosing solution.
One potential drawback is the relatively low maximum flow rate, which may not be suitable for very large water systems requiring higher chemical volumes. Additionally, the pump operates on 120V, so a standard outlet is needed. While the unit is robust, the lack of user reviews on this model means some uncertainty remains, but Stenner's reputation in the industry is reassuring.
Overall, the Stenner 45MJH2A4S is a high-quality peristaltic pump that offers precise, adjustable chlorine injection with durable construction. It is an ideal investment for those needing accurate chemical dosing in residential or light commercial applications. With its complete kit and easy installation, it provides excellent value for its price point.
Buying Guide: Choosing the Right Stenner Pump for Chlorine
Flow Rate (GPD)
The flow rate, measured in gallons per day (GPD), determines how much chlorine solution your pump can deliver. For a typical household well, a pump with 2 to 10 GPD is often sufficient. However, larger systems or commercial applications may require higher rates. Stenner offers both fixed and adjustable flow models, allowing you to fine-tune the output. For example, the Stenner Peristaltic Pump Adjustable Head (0.5-10 GPD) provides versatile control. If you are unsure about sizing, check our What Pump Do I Need for My Well? guide.
Pressure Rating (PSI)
Most Stenner chlorine injection pumps are rated at 100 psi, which is ideal for overcoming backpressure from well tanks or filtration systems. Some models, like the Stenner Pump 45m1, are rated at 25 psi for lower-pressure applications. Always match the pump’s pressure rating to your system’s requirements to ensure consistent injection without overloading the pump.
Adjustable vs. Fixed Head
Adjustable head pumps let you change the flow rate by turning a dial, giving you flexibility if your chlorine demand changes. Fixed head pumps deliver a constant GPD and are simpler to operate. For example, the Stenner Peristaltic Pump 85MPHP17 is a fixed head model that delivers 17 GPD reliably. Adjustable models, such as the Stenner 85MHP17 Chemical Metering Pump Kit, offer 10 different settings. Choose based on whether you prefer simplicity or adjustability.
Tube Material and Durability
Chlorine (sodium hypochlorite) is a corrosive chemical, so tube material matters. Stenner uses Santoprene tubing, which is chemically resistant and long-lasting. All models in this review feature Santoprene tubes, ensuring compatibility with chlorine. Regular tube replacement is part of maintenance, but Santoprene extends the interval. For more on pump kits, see our well pump kit buying guide.
Final Thoughts
After evaluating the top Stenner pumps for chlorine injection, we recommend the Stenner Pump 45m1 – Stenner Peristaltic Pump for its adjustable flow and proven reliability in residential settings. For those needing higher output and pressure, the Stenner Peristaltic Pump Adjustable Head offers a versatile 0.5-10 GPD range and 100 psi rating, making it a solid choice for larger systems. Both models are built with Santoprene tubing and backed by Stenner’s reputation for durability. Explore our Well Pump Kit for Home article for more integrated solutions.
Frequently Asked Questions
How does a Stenner pump work for chlorine injection?
A Stenner pump is a peristaltic (roller) pump that squeezes a flexible tube to move liquid. It draws chlorine solution from a container and injects it into your water line at a controlled rate. The pump head is adjustable on many models, allowing you to set the exact dosage needed for your well water treatment in 2026.
What size Stenner pump do I need for my well?
The size depends on your water usage and chlorine demand. For a typical household, a pump delivering 2 to 10 GPD is common. If you have a larger family or higher bacteria levels, consider a model like the Stenner Peristaltic Pump – 85MJH7A1S (2-40 GPD). Always check your well’s flow rate and consult a professional if needed. Our What Pump Do I Need for My Well? guide can help you calculate.
Is a Stenner pump compatible with sodium hypochlorite?
Yes, Stenner pumps are specifically designed for chlorine injection. They use Santoprene tubing, which resists corrosion from sodium hypochlorite. Most models also include a weighted suction line and injection check valve to handle the chemical safely. For best results, use a 12.5% or lower concentration of sodium hypochlorite.
How often should I replace the tubing on a Stenner pump?
Tubing life varies with usage and chemical concentration. With typical chlorine injection, Santoprene tubing lasts 6 to 12 months. Inspect the tube monthly for cracks or hardening and replace it when you see wear. Stenner pumps feature a quick-release head for easy tube changes, making maintenance straightforward in 2026.
Write Your Review
No reviews yet. Be the first to share your experience!