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JBJ Reaction 4-Stage Canister Filter + UV EFU-25
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JBJ Reaction 4-Stage Canister Filter + UV

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Item #: JB4315P

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Quick Overview

REACTION 4-STAGE Mechanical + Chemical + Biological + UV Sterilization Reaction 4 stage canisters are the latest innovation in high capacity filtration systems. This revolutionary canister filter incorporates high media storing...
Product Description

JBJ Reaction 4-Stage Canister Filter + UV Information

Part #: EFU-25

Mechanical + Chemical + Biological + UV Sterilization

Reaction 4 stage canisters are the latest innovation in high capacity filtration systems. This revolutionary canister filter incorporates high media storing capacity with easy to remove basket trays, self priming lever, quick disconnect shut off valve for convenient media replacement, and an intergraded IV sterilizer with On/Off witch that polishes water to crystal clarity while keeping pathogens at bay.

Reaction 4 Stage Canister filters utilize mechanical, chemical, biological, filtration, and IV sterilization for a balanced aquarium. Filtration media is included.

Water enters the canister via the intake strainer and is guided through a large sponge to trap particulate matter.

The water then reaches 500g of activated carbon to remove harmful dissolved organic compounds.

Water is directed over the ceramic rings that offer a tremendous amount of surface are internally and externally to grow beneficial aerobic bacteria that break down harmful ammonia and nitrate and nitrite.

All filtered water then passes through our powerful UV-C lamp for pathogen and green water elimination.

Reaction 4 Stage Canister Filters are equipped with the most advanced features to provide high performance and make routine maintenance quick and easy.

  • Integrated Self Priming Lever
  • Quick Disconnect Shut Off Valve
  • On/Off Switch for UV-C Germicidal Lamp
  • High Capacity Media Storage

  • INTEGRATED SELF PRIMING LEVER Our innovated self priming lever eliminates the need for manual siphoning. Simply, pump the lever up and down vigorously until the water enters the inlet and the remaining air bubbles leave the outlet.

    Definitely the most useful feature to keep floors dry when carrying out routine monthly maintenance

    The Quick Disconnect Shut Off Valve is an integrated tool that instantly creates a watertight seal that stops water from entering or exiting the filter.

    Simply lift the SHUT OFF VALVE handle to the vertical position to stop water flow.

    Grab the handle and detach and take the canister filter for convenient media replacement.

    This revolutionary concept integrates a special UV-C lamp to destroy green water and polish water to crystal clarity.

    The accessible ON/OFF switch allows for complete user control

    The new trend in canister filters is to increase the filter storing capacity for larger amounts of chemical and biological medias.

    This allows for higher water quality due to more media contact through the initial pass. All filter baskets have convenient handles for removing and loading up all types of media that can be easily customized.


    Model: EFU-25
    GPH: 198
    Tank Rating: 100g
    Filter Height: 15.24"
    Diameter: 11.41"x11.41"
    Media Capacity: 4 liters
    Inlet Hose: 5/8"
    Outlet Hose: 5/8"
    Watts: 23
    UV Wattage: 5W

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    JBJ Reaction 4-Stage Canister Filter + UV Reviews

    Average Ratings:

    Not good Product Review by JASON FRIEDMAN (Posted on 2/26/14)
    Below Average

    Comments: Impossible to prime, had it for about a year. when I first installed it I broke a piece off the priming stick. Its a plastic stick like 4mm thick. a year later, tonight, I was replacing the media and it started leaking, then I broke another piece of the priming stick off and water shot throughout my kitchen. Dont buy

    Now Clean Tank Product Review by MIKE M (Posted on 2/26/14)

    Comments: I was battling with my water for a while and losing fish. This filter made it all easy. I'm using it in my 20 gallon long tank. It is actually way oversized for this tank but thats okay. I have good clean water and happy fish. I did need to add an air stone as this filter does not bring any air into the water.I think it is worth the peace of mind of having a tank that gives me no problems. I have ordered the 25 model for my 10 gallon tank as well.

    decent filter Product Review by JAMIE SLOAN (Posted on 2/26/14)

    Comments: ive had this filter for over a year now,no problem,but....to those that are complaining about the flow rate,if you are using the white fine pads your flow will be slowed down o about 80 gph,the best thing to do is to go too you lfs and buy media pads and cut your own,hope this helps.

    Great Product Product Review by doh_doh_bird_1 (Posted on 2/26/14)

    Comments: The filter has four large trays which can be configured with one's choice of filter media. The filter media supplied with the filter is a minimal amount, but sufficient to get started. To fill the canister, additional media needs to be purchased.

    The filter keeps the water crystal clear; and all water parameters (ammonia, nitrites, nitrates, pH, etc.) perfect.

    As another reviewer noted, the pump ran intermittently out of the box. The manufacturer, JBJ Lighting, send out a replacement cap assembly via overnight delivery. All works as expected now.

    DO NOT BUY!!! Product Review by ANDREW MUMFORD (Posted on 2/26/14)

    Comments: This filter is absolute garbage. I got my unit a few months ago and immediately installed it. The filter is simple enough to install and set up. I turned on the unit and pumped the water through it. Then it was like hoover dam was starting to spring leaks. Little trails of water were coming out from each side of the unit. I turned it off, reseated the canister lid, and tried again. It didn't leak for roughly 30 seconds and then started up again. I had JBJ send me a replacement and then basically sent me the lid. JBJ's customer service is top notch btw. I have nothing against them. I get the new lid in and install it. This one leaks more than the other one. I'm now out $130 and about to buy an Eheim which I should have done in the first place.