About us
In 1971 Bert Grengs started Grentec a plastic injection molding company in Burbank, CA. They began manufacturing RV gate valves, RV toilets, plumbing fittings and later some of Southern California’s iconic plastic skateboards like the “banana board”.
In 1981 Bert retired and Valterra Products began with his son, George Grengs, daughter-in-law, Patricia Grengs, daughter, Barbara Glennon, and son-in-law, Dennis Lunder owning the new company.
Eventually Valterra moved away from the skateboard business and focused on the expansion of their RV business with the acquisition of many important product lines including sewer hoses, RV locks, Fridgemate Fans, and ABS tanks.