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Oasis H20

QC7I DOI Head Manifold (EV9278-91)

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- Pressure Requirements 10 - 125 psi (0.7 - 8.6 bar)
- Operating Temperature 35 - 100ºF (2 - 38ºC)
- Overall Dimensions 8.79" H x 21.33" W x 7.70" D (22.33 cm x 54.2 cm x 19.6 cm)
- Inlet Connections 2 @ 3/4" NPT
- Outlet Connections 2 @ 1/2" barb
Fountain + Ice
Fountain + Coffee
Fountain + Steam
Coffee + Espresso
Features and Benefits
- Ideal for foodservice operations that require two distinct water qualities, such as filtration for fountain and filtration with scale inhibitor for ice or coffee.
- Integrated header design incorporates two (2) independent systems into a single configuration providing two (2) distinct water qualities for multiple applications: primary filtration for fountain and secondary filtration with scale inhibitor for ice.
- Small system footprint is easy to install and service with built-in water shut-off and flushing valves on both water outlets.
- Designed for use with Everpure QuickChange Filter Cartridges (MC2 , XC2 , i20002 , i40002 , 4CB5, 4FC, 4FC-S, 4FC5, 7FC, 7FC5, 7FC5-S, 7CB5, 7CLM, 7SI, BH2 , MH2 , ESO6, ESO7, etc.)
- Provides an easy means of customizing the filtration solution to meet a given customer's water quality requirements and price point.
- Retains NSF® Listing for Standard 42 and/ or Standard 53 in many configurations.
- Complete quick-change system; no need to replace drop-in Everpure ScaleSticks®.
- Can be configured for under-counter placement by using Everpure 4-Size Filter Cartridges.
- Can easily be reconfigured if:
Water usage requirements increase
A municipality changes from chlorine to chloramines for disinfection (e.g. the chlorine-reducing filters can be converted to the 7CLM for chloramine reduction)
Operational Tips
- Change cartridges on a regular six (6) month preventative maintenance program.
- Change cartridges when capacity is reached or when pressure on the outlet gauges fall into the red zone when system is in operation (when water is flowing through the system).
- Service flow rate must not exceed cartridge rating.
- Always flush the filter cartridge at time of installation and cartridge change.
Installation Tips
- Connect minimum 1/2" (1.3 cm) water line.
- Install vertically with cartridge hanging down.
- Allow 2-1/2" (6.35 cm) clearance below the cartridge for easy cartridge replacement.
- Flush filter cartridges by running water through filters according to cartridge instructions.
Shipping & Returns

- Free Shipping on most orders over $99. T&C Apply

- We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

Get 5% off

As part of your first online order with us we're giving you 5% off!

Use code " OAS10sW " at checkout

    QC7I DOI Head Manifold (EV9278-91)

    The Oasis H2O Promise

    • Free Shipping

      Free Canada-wide shipping on most orders over $99
      T&C apply

    • Returns Guaranteed

      You can return your online order within 30 days of recieving it. T&C apply

    • System's Warranty

      We only sell systems with 100% manufacturer backed warranty's

    • Pentair Certified Dealer

      Providing water filtration solutions since 2001

    Your One Stop Filtration Shop

    – Oasis H2O

    The Oasis H2O Expertise

    Soft Water

    Oasis H2O sells only the top water softeners in North America that are extremely efficient and manufactured by Pentair, the industry's leader. If you're looking for an affordable and easy solution to hard water in your house, consider a water softener. 

    Hard water solutions starting at only $9.99/Months OAC

    Speak to a water technician now

    Drinking Water

    Oasis H2O features the best-in class and most affordable Reverse Osmosis systems and Drinking water Filters in the industry. If you're looking for an easy and viable alternative to bottled water or city tap water, look no further. 

    Starting at only $495 Installed... Want specs?

    Speak to a water technician now

    Hot Water

    We've always given our clients what their household needs, not anything less or more than that. Our range of tank and tankless water heaters do just that.

    Need a system that works just right for your family?

    Speak to a water technician now


    Very professional and knowledgeable service.
    I have show and share this service with friends and relatives and they surely will contact Oasis H2O in case of water purification needs.


    Top of the line customer service, and very knowledgeable. The only place to go for your water purification needs.


    Had softener installed, was quick, straight forward, and painless


    Shane helped us choose the best water softener for our needs. He did an amazing job installing the new softener in such a tight space. We really appreciated his honesty. He is a really good guy!


    Great product with very fast and efficient install. Shane was very informative and helpful we noticed amazing water results almost immediately. Highly recommended.