In spite of what you may have been told, on June 16, 2016, the U.S. Court for the Western District of Michigan ruled that Alpha’s AR683k Combustion Tube Replacement Kit – compatible with the Leco© CS744 and CS844 furnaces – does not infringe on Leco© Corporation’s U.S. Patent 8,884,193. This is Great News to some of you who may have been told otherwise. Now you can continue to use Alpha’s money-saving replacement kits and tubes with no concern of threats by Leco© of possible litigation. Alpha will continue its efforts to provide you with high quality money saving solutions to your consumable needs.
COMBUSTION TUBE PART NUMBER - AR683 (619-591-683)
ADAPTER KIT REQUIRED- AR683k, KIT FREE WITH PURCHASE OF 24 COMBUSTION TUBES