To help protect against termites in high infestation areas (which are generally concentrated in the Southeast USA) Halo® Subterra® and Exterra® products are available from our plants in Tennessee, Mississippi, and Kansas with foam cores treated with Preventol, which adds a secondary layer of defense against termites.

Halo products treated with Preventol are identified with the suffix “TK” and are typically available on a special-order basis and are usually priced at a 6% premium over regular Halo products.

The Preventol treatments are made in very low parts per 1000 and thus Halo TK products are do not pose any off-gassing risks from this treatment.