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Everflo EF5500-BOX 5.5GPM 12V Diaphragm Pump-1/2 FNPT Connection, 5.5 GPM, Black

  • Based on 3,352 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Nov 3 – Nov 4
Order within 4 hours and 5 minutes
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Size: 5.5 GPM


Style: FNPT Ports


Features

  • 12V pump that can handle up to 5. 5GPM & 60 psi
  • Self priming up to eight feet
  • Approved For use with agricultural applications
  • Fiberglass-reinforced polypropylene pump manifold with 12 FNPT Port
  • Standard mounting pattern to fit most sprayer tanks
  • Replacement 12 Volt diaphragm pump for variety of makes and models
  • Can be used for other fluid transfer applications such as disinfectants and sanitizing
  • Corrosion resistant Viton valves and Santoprene diaphragm
  • 12 volt wire harness sold separately

Description

When it comes to spot & broadcast spraying, the Everflo 12V 5. 5 GPM on-demand 12V diaphragm pump is the king of the hill. With premium components & cutting- edge engineering, Everflo provides the flow You need. This pump is loaded with features such as a Honeywell Micro switch, corrosion resistant Viton valves & Santoprene diaphragm & fiberglass-reinforced polypropylene pump manifold with ½” NPT port. Other features include a silky smooth valve design for faster primes & a unique pressure switch that slowly cycles The pump to reduce wear on the motor & switch. Save battery power with the automatic power switch that turns off pump when no flow is needed. Has standard mounting pattern to fit most sprayer tanks. Replacement 12V diaphragm pump for variety of makes & models. Can be used for other fluid transfer applications such as disinfectants and sanitizing (pump will need to be flushed and clean after- use). Handles up to a max of 60 PSI & self-primes up to 8'.

Specs & Other Info

SpecificationDetails
BrandEverflo
ColorBlack
MaterialPolypropylene
Connection TypeFNPT Ports
Dimensions8.75"L x 5.2"W x 4.76"H
Operation ModeManual
Weight6 lbs
Flow RateUp to 5.5 GPM
Lifting HeightMaximum of 8 Feet
Electrical Requirements12V DC
Model NumberEF5500-BOX
Continued AvailabilityNo (Product not discontinued)

Frequently asked questions

To install the Everflo EF5500 pump, first ensure your system is powered off. Mount the pump using its built-in mounting feet, ensuring it's securely in place. Connect the pump to your system using 1/2 FNPT connections for the inlet and outlet ports. Finally, connect the pump to a 12V power source, observing the proper polarity. Always refer to the manual for detailed instructions and safety information.

Yes, the Everflo EF5500-BOX is designed for handling various fluids, including agricultural chemicals. Its robust construction makes it suitable for spraying pesticides, herbicides, and other agricultural chemicals. Ensure the chemicals are compatible with the pump's materials to prevent damage.

To maintain the Everflo EF5500 pump, regularly check for leaks or damage to the pump body and diaphragm. Clean the inlet and outlet filters to prevent clogging. After using chemicals, flush the system with clean water. Periodically check the electrical connections and mounting for security. Refer to the user manual for detailed maintenance guidelines.

Yes, the Everflo EF5500 diaphragm pump is self-priming, offering a convenient setup experience. It boasts a vertical suction lift of up to 12 feet, allowing it to draw water from a depth and facilitating versatile usage in various applications, from agricultural spraying to fluid transfer tasks.

Top Amazon Reviews

πŸš€ Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The product being reviewed is described by various users as both effective and disappointing. While some users find these pumps great for tasks like spraying farm chemicals, roof cleaning, and pressure washing, citing their power and ability to handle caustic chemicals with proper rinsing, others express dissatisfaction with their durability and quality over time. The longevity of the pumps seems to be a significant issue, with some pumps failing within a year or even five weeks, despite the manufacturer's reputation for producing lasting products.

Pros

  • πŸ‘ Effective for a variety of uses, including farm chemical spraying, roof cleaning, and pressure washing
  • πŸ‘ Capable of handling caustic chemicals with proper maintenance
  • πŸ‘ High power output, able to shoot weeds 40 feet away
  • πŸ‘ Some users report satisfactory performance when the product is properly maintained and rinsed after use

Cons

  • πŸ‘Ž Durability concerns, with some pumps failing within a year or even just five weeks
  • πŸ‘Ž Quality has reportedly declined over time, according to long-term users
  • πŸ‘Ž Issues with connections getting loose over time
  • πŸ‘Ž Some complaints about receiving products that were dirty or damaged upon arrival

Should I Buy It?

Considering the mixed reviews, purchasing this pump depends on your willingness to maintain it rigorously and your tolerance for the possibility of needing to replace it sooner than expected. If you're using it for professional purposes and it quickly pays itself off, it might be worth the investment. However, for those seeking longevity and reliability above all, exploring other options could be advisable.


  • Very easy to install, good pump
Size: 1.0 GPM Style: Hose Barb Ports
Replaced an older pump that was still working on an Irontron 8 gallon ATV sprayer. The older pump had lost some pressure and this one works great. Total replacement time might be 10 minutes. Unit is very quiet. When I use this unit I usually spray fire ant killer, 2-4-d, or Roundup. Clean the unit after each use!!!! I get amused by people who rate a pump as not lasting very long but works good when it did. I have to believe that many users do not clean the tank/pump after each application. I learned the hard way, but now I do not have any issues with pumps. There is not a pump sold that will withstand harsh herbicide/pesticide chemical on the interior seals. If you clean the tank/pump after each use it will last a long time. Here is what I do: 1. Drain the tank of any remaining fluid 2. Add water to the tank and then drain it again 3. Add about 2 inches of water to the tank, power up the pump, and spray the water out 4. When the water hitting the ground loses the suds or soapy appearance the unit is now spraying mostly water. 5. Unpower the pump and squeeze the lever on the wand to remove the pressure inside the pump. 6. Store the unit for the next use. I always leave some water in the tank, but not in the pump. Good luck. It only takes less than 5 minutes to clean. ... show more
Reviewed in the United States on May 30, 2022 by W Ford

  • Quality
Size: 1.0 GPM Style: Hose Barb Ports
Ordered for my husband. He said it worked perfectly.
Reviewed in the United States on July 23, 2025 by Marilyn S Kincaid

  • This pump is backed by a great manucaturer!
Size: 5.5 GPM Style: FNPT Ports
My previous review was not rosy because the new pump failed to start! Unfortunately Amazon return timeline expired already! Fortunately the manufacturer in Minnesota β€œValley Industries” was incredibly kind. Thank you Mary! They sent me a new pump in 2 days because the pump was still under warranty. So have no fear the folks at Vally industries will be there for you. ... show more
Reviewed in the United States on May 5, 2025 by Hassan Sahouani

  • Not pleased.
Size: 2.2 GPM Style: Diaphragm
Why did you pick this product vs others?: I chose this item as it was identical with mine that quit. Upon receiving it , the hose connections were completely different. I had to disassemble the top of the pump along with the old pump and switch the hose connections.
Reviewed in the United States on July 15, 2025 by Kent Emerick

  • Total Junk!
Size: 5.5 GPM Style: FNPT Ports
Purchased this and did everything possible to use it as a soft wash pump. I can only use long range tips, not fan tips. The stream when first purchased was pulsating. It's suggested to turn the psi screw. This was adjusted and it worked fine for about 45 minutes, then nothing. I have used a 12v group 24 battery, that sucked. I used a 16.7 12v waterproof charger, it was a bit better. The pump stopped working in the middle of my job and I noticed the pump would not kick on. I checked the pressure switch and it was faulty plus I noticed a crack in the plastic housing, complete junk. The power switch is supposed to push out when the pump lacks the correct pressure and then push in to stop pump when pump is not in use or has adequate pressure. The switch is not closing the circuit. After releasing pressure it takes 10 sec to kick on, so a faulty switch too. The screw can't be turned any tighter for pump operation frequency without striping or falling into the housing. The whole power switch and housing for turning the pump on and off seem like complete plastic junk. ... show more
Reviewed in the United States on May 12, 2020 by James Wix

  • Direct replacement on North Star broadcast sprayer
Size: 2.2 GPM Style: Diaphragm
My north star broadcast sprayer was working intermittently. Purchased this and it was a direct cross with all the same connections. Undid 3 screws and this was put right in its place. Connected the battery and I was back to spraying. A 5 minute fix.
Reviewed in the United States on August 12, 2025 by Ken Schultz

  • Fast and efficient shipping
Size: 2.2 GPM Style: FNPT Ports
A true value and fast shipping was excellent option and avoided a long ordering process for our farm equipment.
Reviewed in the United States on August 14, 2025 by Rebecca R.

  • sprayer pump
Size: 2.2 GPM Style: Diaphragm
Works great. Installs easily
Reviewed in the United States on June 26, 2025 by Sally Stover

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