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Hagen Fluval M 100 Watt Submersible Aquarium Heater

Product code: 1693

Availability: In stock

Ships Monday, April 19 if ordered in the next 2 days, 17 hours and 33 minutes!

Reward Points Policy You will earn 1,547 AQUAPOINTS for buying this product.


Hagen Fluval M 100 Watt Submersible Aquarium Heater Unique reflective technology goes into each Fluval M Series Aquarium Heater. This advanced feature helps your heater "vanish" into your aquascape. Other features include an easy-to-adjust temperature control dial, shock-resistant glass to help prevent breakage, and a 3-year warranty.


* UNIT SIZE: 11 in. long
* WATTS: 100
* CORD LENGTH: 6 ft.
* TEMP RANGE: 66 to 86 degrees
* AQUARIUM TYPE: Fresh and Saltwater
* MAXIMUM TANK SIZE: Up to 30 gallons


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  1. Fluval 100 watt heater Review by zoeykitten2008
    Product Rating:

    Bought this heater when I purchased the Fluval flex tank. It’s working great and has matched my thermostat to a T. (Posted on 2/1/2018)

  2. Don't pass on this heater. Review by Cichlid Mike
    Product Rating:

    I bought the Fluval M 100 heater for my 10 gallon aquarium. It keeps temperature pinpoint accurate. It's actually one of the most accurate heaters I've bought to date. I like the mirror finish this heater gives off. It blends in with the aquarium's decor. I've been the hobby since the late 80's and I would highly recommend this heater to anyone who wants a quality product. Very good job Fluval. (Posted on 10/19/2015)

  3. Great Heater Review by Keith
    Product Rating:

    This is a very nice looking heater. Looks awesome in my tank, really like the blue light to indicate heater is on. (Posted on 2/19/2015)

  4. Excellent heater for your tank Review by Callisto

    This is my second purchase of one of these heaters. It works really well is very reliable and does a fantastic job. I have two thirty gallon tanks and these Fluval heaters do a wonderful job on keeping the tank to the correct temperature that I set. No fish loss from overheating! Aqua Cave is also super lightening fast on their shipping too! I received my shipment in as fast as a day after ordering!! (Posted on 9/13/2011)

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