CPR BT ADSL Broadband Microfilter/Splitter – CPR Call Blocker CPR BT ADSL Broadband Microfilter/Splitter

CPR BT ADSL Broadband Microfilter/Splitter

Product Description

We highly recommend that you buy these fully compatible with ADSL / MaxDSL / ADSL2 / ADSL2/2+. These Heavy duty are designed for higher usage and higher bandwidth especially If your ADSL Line is 2MB or above.

A micro filter or ADSL Filter, separates your analogue telephone service from the data signals used on your broadband service, allowing you to use both simultaneously. It will help you get better voice quality. Although our filters may be at a fraction of many other on the market, but this does not mean we compromise on the quality. All our ADSL filters are of very high quality and according to BT specifications. It Meets all SIN346 requirements including "longitudinal balance" test.

Manufactured to exceed the BT SIN 346 v2.2 guidelines for UK micro filters. It offers complete compatibility with BT services such as CLI (Caller ID). Manufactured for maximum compatibility with even the most complex telephone equipment. Fully compatible with DECT cordless phones and PABX systems

How many ADSL filters do I need?
You will need to fit an ADSL filter to every telephone outlet where a telephone is connected. Whilst there is no practical limit to the number of filters that can be connected to a phone line, we recommend a maximum of four filters and that the phone should be connected to a filtered sockets only unless the phones socket has built in filter components. It is possible to attach a ''phone-doubler''adapter to a filter in order to attach two telephone handsets. However it is important to note that not filtering one telephone device will affect other devices and this may stop all the other filters working correctly.


  • supplied in voice or data transmission circuits
  • Provides isolated conversion between modem and telephone line 
  • Have filter function,and passed UK test standard
  • Single DC Resistance :<=50 ohm
  • Insertion loss :1KHz;<1dB
  • Attenuation distortion :200Hz
  • Return loss from phone side <200Hz 
  • Input port: UK plug*1
  • Output Jack: US Jack (for modem)*1
  • UK Jack (for phone)*1
  • Dimension: 58*43*23.1 mm; wire length: 100±5mm

Customer Reviews

Based on 4 reviews Write a review


- Free Shipping (3 to 5 Days) at £0.00
- Royal Mail 48 (48Hrs - 72Hrs) at £0.99
- Royal Mail 24 (24Hrs - 48Hrs) at £1.99
- Royal Mail Special Delivery by 1pm at £6.50

Orders placed on a Friday afternoon after 2pm, during the weekend or on a Bank Holiday will be processed the following working day.

Rest of the World
All products are shipped by Fedex or UPS from our Worldwide fulfillment centres. Delivery will occur within 3-7 Days.


You may return opened, undamaged items within 45 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, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.

It is our responsibility to supply you with goods that meet your consumer rights. If you have any concerns that we have not met our legal obligations please contact us: 0800 652 7780

Interested in wholesale? Click here and complete the contact form. Our head of commercial and public sector representative Lee Hare will call or email you back at your earliest convenience.

CPR Call Blocker is a European electronics manufacturer, distributor and online retailer of consumer electronics and accessories based in Swansea, UK, New York, NY and Sydney, Australia.
We also design and manufacture many of our own products such as the CPR Call Blocker and the eelo range of portable electronics.
Our mission is to constantly bring technology to life by continuing to offer optimum choices in innovation and products

We invite you to discuss our range of products and solutions with us. At CPR Global Telecom we strive to understand your needs, expertly matching our solutions with your requirements. Whether a retail or wholesale customer, we strive to create excellent customer service experiences across the board.

If you have any questions, click here to get in touch with one of our friendly customer service representatives.