Diversi-Tech Corp is the manufacturer of the nation’s #1 best selling trailer coupler lock, the DT-25013 Maximum Security Coupler Lock. Diversi-Tech also manufactures 24 variations of the very popular DT polished aluminum locking ball mount hitch products made here in the United States. Diversi-Tech's china operations include the manufacturing and engineering of many private label trailer security lock & towing products for some of the nation’s most popular brands. DT has built a reputation for producing extremely high quality trailer towing & security products with very competitive direct to wholesale distributor pricing. Visit Diversi-Tech at www.diversi-tech.net.