Blu Water Activated Carbon CTO Block Carbon Replacement RO Pre-Filter

In stock

The Blu Water Activated Carbon CTO Block Carbon Replacement RO Pre-Filter is designed to be used for common reverse osmosis systems with housings to fit 2.5" x 10" filters.


This premium filter:

  • 1 x Activated CTO Block Carbon (Chlorine, taste and odour reduction)

Simple installation, no need for plumber! Simply...

  1. Turn the inlet water off
  2. Keep a bowl underneath the filter you're about to change
  3. Slide the housing key from underneath the housing until firm
  4. Turn anti-clockwise and remove housing
  5. Insert new filter into the housing
  6. Lock the housing back in place using the housing key
  7. Repeat for following filters
  8. Turn inlet water back on and flush the filters for 15minutes

Temperature: Min 4°C, Max 38°C
Pressure: Min 35psi, Max 80 psi

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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Blu Water Activated Carbon CTO Block Carbon Replacement RO Pre-Filter