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Drain Rehab Solution

Circular Chain Knocker Set Screw with 4mm chains for 5/16'' (8mm) cable

Circular Chain Knocker Set Screw with 4mm chains for 5/16'' (8mm) cable

Regular price $124.99 CAD
Regular price Sale price $124.99 CAD
Sale Sold out
Shipping calculated at checkout.

Circular Chain Knocker is a mechanically rotated tool for sewer cleaning and pipeline renovations. 

Circular Set Screw Chain Knockers are made from durable carbon steel and are ideal for drain cleaning, root cutting, and descaling cast iron, clay, concrete, and PVC/ABS lines. 

Note :


Note :

Standard flex shaft cable : For use once a week

Heavy Duty flex shaft cable : For use more than once a week

Note :

Always read the instructions notice before using a device in order to keep it functional and safe for the user.


All returns must be confirmed and approved by e-mail before the items are shipped back to us. 

Please e-mail all return requests to:

  • All resin and pipe liner kit sales are final.
  • You may return other unused, unopened merchandise within 30 days for a refund, minus shipping and handling fees and a re-stocking fee of 20%.
  • We will only refund shipping costs if the return is a result of our error. 
  • In the case of defective merchandise, we will ship out a replacement once we have received and verified the defective merchandise.
  • All items under warranty will be either replaced or repaired at the discretion of Drain Rehab Solutions with our client satisfaction approach.


For delivery in North America, delivery charges are all included in the invoice. Delivery time is 2 to 7 days.

For delivery to other countries, additional delivery charges may apply depending on the destination country. Delivery time is 7 to 14 days.

Customs Duty : is a tariff or tax imposed on goods when transported across international borders. May apply on your purchase depending your delivery zone.

Payment always the customer's responsibility. For any question about shipping fees, please contact us via


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