Browse Categories
Browse by Manufacturer
Customers Say
  • Just a quick note to thank you again and express my appreciation for all your help on this purchase. Your guys are great!
    - Rich
  • Thank you for the excellent service. Very impressed with service from you folks.
    - Tim
  • I was kind of leery about shelling out that kind of money without knowing what kind customer service I would get. Not anymore! I now feel like I made a wise choice.
    - Nicole
  • John was excellent in answering all my questions and even talked at length about new products and fish related stuff. I really enjoyed doing business with this company!
    - Travis
  • I just want to say thank you greatly for all of your assistance! I am highly impressed by your customer service focus.
    - Nicole
  • The item that I purchased was delivered a lot faster than expected, not to mention a professional job packing the light.
    - Michael
  • Thank you, John, for your prompt attention... I will definitely order from you guys again!
    - Jack
  • Tank is gorgeous. Whole family is loving it. Now we're spending our evenings watching it instead of TV!
    - Joan
  • Just like your feedback points out, you guys are great to deal with. I look forward to many more future purchases.
    - Lenny
  • Thanks again for the great service it was a pleasure dealing with you. I will definitely be recommending people your way.
    - Pete
  • It's been a long time since I've had such great customer service. I truly appreciate it and will be using you from here on out.
    - Eve
  • I want to thank you for you service. I will be recommending you to all of my fish friends and to the ten different fish clubs that I belong to.
    - Charles
  • We can't thank you enough! The chiller just arrived as you promised and we are back in business! You are a miracle-worker!
    - Dr. Delbridge, PMP
  • I've been in the hobby for almost 5 years now and have dealt with a lot of vendors. I am very impressed with the packaging and fast shipment!
    - Thai
  • When it comes time to buy a new tank. Fish Tanks Direct will be the first place I go...
    - Marc
  • Customer satisfaction is certainly a top priority for you, and we would definitely want to do business with you again.
    - Janet
  • I am writing this e-mail to say thank you for your great customer service.
    - Jimmy
  • The tank was delivered safe and sound. More over... the way it was packaged up for shipment was Excellent!
    - Darren
  • I couldn't find a better price on the item I wanted! The best price and the best service? You guys are great.
    - Dave
  • Fish Tanks Direct is PHENOMENAL! Their customer service is hands down the best I’ve come across in 10 years of reef keeping.
    - Wesley
  • I must say as being a business owner, I commend your company on the customer service and speed of your deliveries.
    - Rob
  • Thank you very much for your fast and efficient service... awesome!
    - Marlene
  • Just wanted to say thanks again for all you and your team did in assisting me with the fish tank. It looks great and I'm a very satisfied customer.
    - Scott
  • Thank you, John!!! Great customer service... give yourself a pat on the back!
    - Dary
  • Thank you sooo much for all your help. We love our new acrylic tank and setup. Everything is so much clearer and the color of the fish is much truer.
    - Jone H
Korallin C1502 Calcium Reactor with Eheim Pump

Korallin C1502 Calcium Reactor with Eheim Pump

Model #:
0 x 0

Product Description

Korallin C-1502—Rated for up to 400gal.
Reactor height: approx. 15.75"
Diameter: 4.50"
Ground: 6.30"
Filling amount: 3 kgs (6.6lbs)
Eheim 1048 Pump.

The internal recirculation flow rate of the C-1502 is around 80 g/h. Since that this is a pressurized Kalkreaktor, the dissolution of the media by the carbonized water is enhanced. The effluent rate is only about 0.25 g/h at 40 drops/min. Thus explaining the efficient CO2 & media use. CO2 is being introduced into the Eheim powerhead direct—this is the most efficient Aspirating-Venturi method.

Top-loading & access w/ enhanced O-ring seal

`Auto-fill` Integrated Bubble Counter on one water circuit (ie: water never evaporates)

Detachable Tru-Union couplings w/ O-rings for easy handling, safe shipping, upgrading and leak proof

Integrated `industrial-grade` Brass Check Valve from German Air Pressure Systems to prevent back flow of pressurized saltwater

Improved engineering for stronger water circulation and suction

Secure German airline tubing connectors

Medical-use Miniature Quick Disconnect Couplings w/ shut-off 3 Inlet & outlet facing same direction

Special elbow for flexible airline tubing mounting

Heavy-duty Excelon construction w/ no unsightly and fragile hangover tubing

Top pump-mounting design

Self-suction water intake by the silent Eheim pump eliminates the use of a dedicated powerhead, gravity-fed or tee-off methods. It also serves for water recirculation.

Water circuit interruption in case of CO2 overdose—our exclusive CO2 Safety Feature

Visual excessive CO2 check w/ ventilation valve for quick release

Dual effluent outlets to suit different systems

Aspirating-Venturi technology utilizes only 10 CO2 bubbles/min. and up—most efficient use of both CO2 gas and CaCO3 media

The most compact and versatile positioning Kalkreaktor in its class—6.25" small foot print + 15.75" total height—external or in-sump

Micro-adjustable miniature ball valve to maintain a consistent effluent drip rate

Slightly larger (German size) airline tubing for more consistent water flow

Strainer to protect Eheim pump from loose media particles

Product Reviews

Rate This Product:
or Create a Review
(0 Ratings, 0 Reviews)