The Everpure EV979580 (E-10) Prefilter System is a 10-micron sediment prefilter, a slim-bowl housing fitted with an EC110 cartridge, for foodservice and commercial water lines in high-sediment areas. It is built for facility managers, operators, and installers who need to protect the filters and equipment downstream.
This guide covers Everpure EV979580 system installation for a first-time setup, which takes an estimated 10–15 minutes. Replacing the cartridge on time matters, because an overdue cartridge stops protecting the downstream filters and lowers water quality.
Safety & Preparation
Choose the Mounting Location
The E-10 mounts vertically, with the bowl hanging straight down. Pick a spot that can carry the system's 6 lb operating weight and leaves 2-1/2 inches of clear space below the bowl for cartridge changes. For best performance, place it close to the equipment it serves and ahead of any carbon filters in the line. No electrical connection is needed, so the location does not have to be near an outlet.
E-10 Prefilter System Dimensions
🔍 Before you start: check your supply against the system's operating limits:
The system is built for a 3/4" water line, with 3/4" FNPT inlet and outlet ports. Reducer bushings are included if your line needs to step down.
Have Everything Ready
🧰 Materials
Included with the system:
You will also need:
⚠️ Safety Precautions
Step-by-Step Installation
Common Installation Mistakes
The red cards below are mistakes to avoid entirely. The amber cards can be corrected after the fact. Each card says how, and links to the section that covers the requirement in full.
The spec sheet says not to exceed the system's maximum service flow. Before installing, confirm that the equipment on the line draws no more than the flow limit in Safety & Preparation. For higher demand, see Product & Replacement Options.
The E-10 takes the 10-inch EC110. The EC210 belongs to the E-20, whose bowl is longer, so it is not a substitute. Check the part number before installing; the correct cartridge is covered in When to Replace Your Filter Cartridge.
The system is heavier full of water than it is in the box, and the spec sheet requires a location that supports its full operating weight. If the surface is in doubt, move the unit to one that meets the weight requirement in Safety & Preparation.
The housing must hang vertically, with the bowl straight down. If it is tilted or inverted, shut off the water and remount the head before going further, as in Step-by-Step Installation.
Without clearance under the bowl, it can't be removed for cartridge changes. Raise the head or clear the space until it meets the clearance in Safety & Preparation.
A dry O-ring or a loose bowl can leak. Turn off the inlet water, press the red pressure-relief button, and unscrew the bowl. Lubricate the O-ring with food-grade silicone lubricant, then refit the bowl by hand and snug it with the filter wrench.
The ports are sized for a 3/4" line. If your piping is smaller, fit the included reducer bushings and keep to the minimum piping size given in Step-by-Step Installation.
The supply goes to the inlet, and the outlet feeds the next piece of equipment. Confirm which port is which before connecting. If they are swapped, shut off the water, relieve pressure with the red button, and reconnect the lines.
What to Expect After Installation
Start-Up: Purge the Air
Once the water is back on, the housing still holds air from installation. Press the red pressure-relief button on top of the head and hold it down. When water begins to come out of the relief valve, release the button. A little water may spray out while the button is pressed.
With water flowing, check the bowl, the inlet connection, and the outlet connection for leaks. Confirm that flow is steady and within the limits in Safety & Preparation. Then look through the clear bowl to confirm the cartridge sits on its guide seat and the housing looks as it should. Compare what you see against the two columns below:
✅ Normal After Installation
🔎 Worth a Second Look
The prefilter is ready for service once the air is purged, the connections stay dry, and flow is steady. If anything lands in the right-hand column, see Troubleshooting & FAQ. Keep replacement cartridges on hand from the start; timing is covered in When to Replace Your Filter Cartridge.
Official Product Resources
The Everpure EV9795-80 spec sheet is the official reference for Everpure EV979580 system installation. It lists the overall dimensions of 12.44" H x 5.16" W x 5.5" D, along with the connection sizes, the service flow rate, and the operating limits used throughout this guide.
When to Replace Your Filter Cartridge
Replace the EC110 when either inspection sign below appears, and no later than the six-month scheduled interval, whichever comes first:
Replace the cartridge once dirt has penetrated through to its inner core.
Replace it when flow decreases, or when a pressure gauge after the prefilter shows extremely low pressure during water flow.
The scheduled interval for routine maintenance, even if neither sign has appeared.
🔍 Clear bowl: the transparent bowl shows the cartridge's dirt load without taking the housing apart, so you can check the inner-core sign between scheduled changes.
The replacement for this system is the Everpure EC110 (EV953412), the same 10-micron cartridge that ships with it, sold here as a 12-pack. For set-it-and-forget-it restocking, an optional subscription delivers a 12-pack every six months, so cartridges are on hand when an inspection or the schedule calls for a change. The subscription only handles restocking and does not set the change interval. Follow the guidance above for when to replace the cartridge.
How to Maximize the Lifespan of Your Filter
A few routine habits keep the E-10 working as installed and make each cartridge change quick:
- Check the bowl regularly: the clear bowl lets you watch the dirt load build without opening the housing.
- Inspect the O-ring at every change: lubricate it with food-grade silicone lubricant if it feels dry, and replace it if it is worn or damaged.
- Stay within the operating limits: the flow, pressure, and temperature ranges are in Safety & Preparation.
- Keep the space below the bowl clear: open clearance keeps cartridge changes fast.
The prefilter catches the coarse dirt before it reaches the primary cartridges downstream, so changing it on schedule also helps those filters last longer. The schedule is in When to Replace Your Filter Cartridge.
Troubleshooting & FAQ
How long does Everpure E-10 prefilter system installation take?
An estimated 10 to 15 minutes for a first-time installation, following the seven steps in this guide. The steps are in Step-by-Step Installation.
Which cartridge does the system use, and what is included?
The system uses the Everpure EC110 10-micron sediment cartridge (EV953412). The box includes the housing with slim bowl, one EC110 cartridge, reducer bushings, and the installation and maintenance guide.
How often should the cartridge be replaced?
Every six months, or sooner if the clear bowl shows dirt has penetrated to the inner core of the cartridge, flow decreases, or a pressure gauge after the prefilter shows extremely low pressure during water flow. The full guidance is in When to Replace Your Filter Cartridge.
What should I do if flow drops?
Check the cartridge through the clear bowl and replace it if dirt has reached the inner core. Also confirm that demand on the line does not exceed the 4.0 gpm maximum service flow.
What should I do if the bowl or fittings leak?
Turn off the inlet water and press the red pressure-relief button. Check that the bowl O-ring is lubricated and seated, that the bowl is screwed on by hand and snugged with the filter wrench, and that the threaded connections are sealed with NSF-approved pipe dope or Teflon tape.
Does the system fit 3/4-inch plumbing?
Yes. The inlet and outlet are 3/4-inch FNPT, and the included reducer bushings step the ports down to 3/8-inch FPT if your line needs it.
How do I purge air at start-up?
Use the red pressure-relief button on the head, as described in the final step of Step-by-Step Installation and in the start-up checks in What to Expect After Installation.
Can the system be used on unsafe or unknown-quality water?
No. Do not use it on water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Does the system need electricity?
No. The prefilter needs no electrical connection. Power to the equipment it serves is shut off only during installation.
How does the E-10 differ from the E-20?
The E-10 uses a 10-inch bowl with the EC110 cartridge, is rated for 4 gpm, and stands 12.44 inches tall. The E-20 uses a 20-inch bowl with the EC210 cartridge, is rated for 8 gpm, and stands 22.44 inches tall.
Product & Replacement Options
If your line needs more flow or finer pretreatment than the E-10 provides, the related products below are worth comparing. Below them is the simplest way to keep EC110 cartridges in stock.
The 20-inch version of the E-10, rated for 8 gpm, for lines that need more flow.
View Product →A higher-flow pretreatment system, rated for 15 gpm with 0.65-micron filtration.
View Product →A separate prefilter cartridge listing with 0.5-micron filtration.
View Product →Never Run Out of EC110 Cartridges
Optional auto-delivery of the EC110 12-pack every 6 months keeps replacements on hand when an inspection says it's time. Replacement timing is in When to Replace Your Filter Cartridge.
Conclusion
Installing the E-10 comes down to a short sequence. Shut off the water and power, mount the head, seat the EC110 cartridge in the bowl, connect the inlet and outlet, and purge the air at start-up. Once the water is on, check the bowl and connections for leaks and confirm the flow is steady before putting the system into service.
After that, it's a matter of changing the cartridge on time. Replace it on the schedule in When to Replace Your Filter Cartridge, or sooner if the clear bowl or a pressure drop calls for it. The optional subscription keeps cartridges on hand so the next change is never held up.