Stenner Adjustable Peristaltic Pump w/ 1/4" Tube 120V/60Hz | 45MJL5A1STAA
Stenner
SKU: 45MJL5A1STAA
Stenner 45MJL5A1STAA – Classic 45 Series Adjustable Chemical Injection Pump
Product Overview
The Stenner 45MJL5A1STAA is a high-quality peristaltic metering pump designed for precise and consistent chemical injection in pool, spa, and water treatment systems. It provides adjustable flow control, dependable operation, and compatibility with a wide range of liquid chemicals including sanitizers, acids, and pH adjusters.
Key Features
- Adjustable output up to 50 gallons per day at 25 PSI.
- Self-priming peristaltic design—no need for valves or complex priming procedures.
- Durable motor and chemical-resistant tubing for long-term reliability.
- 120V AC, 60Hz motor suitable for continuous or intermittent operation.
- Manual feed rate control dial allows fine-tuning of chemical dosing from 5% to 100% output.
Technical Specifications
- Part Number: 45MJL5A1STAA
- Series: Classic 45 Adjustable
- Voltage: 120V AC / 60Hz
- Maximum Output: 50 GPD (gallons per day)
- Maximum Pressure: 25 PSI
- Motor Power: 1/30 HP
- Tubing Connections: 1/4" ID suction and discharge
- Tube Material: Santoprene (standard chemical-resistant)
Applications
This Stenner pump is commonly used in pool and spa systems, water treatment facilities, and chemical feed applications where accurate dosing is critical. Typical uses include injecting chlorine, acid, soda ash, or specialty chemical solutions for sanitation, pH control, and oxidation.
Installation Instructions
- Mount the pump securely on a flat, stable surface near the chemical source.
- Connect the suction tubing to the chemical supply tank and the discharge tubing to the injection point.
- Ensure proper alignment and secure all connections to prevent leaks.
- Connect to a 120V grounded outlet and verify power supply matches specifications.
- Prime the pump and adjust the feed rate using the control dial for desired output.
Troubleshooting
- No chemical output: Check for air leaks, clogged suction tubing, or worn pump tubing.
- Pump not running: Verify power connection, on/off switch position, and ensure motor is not overloaded.
- Inconsistent dosing: Inspect tubing for cracks or stiffness and replace if necessary.
- Leaks at fittings: Tighten connections and verify correct tubing size and chemical compatibility.
Maintenance Tip
Inspect the pump tubing and fittings monthly for wear or leaks. Replace the pump tube at least once a year or sooner if it shows signs of fatigue. Flush the pump and lines when changing chemical types to prevent cross-contamination. Regular maintenance ensures consistent dosing accuracy and extends the life of the pump.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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