ENZ USA Bulldog Antiblast nozzleThe Bulldog Antiblast nozzle from ENZ USA is designed to prevent blowing toilets when cleaning sewer lines near home installations. By reducing water pressure through toilets and vent traps, the nozzle lowers the risk of pressure equalization, which results from negative pressure ahead of the nozzle or excess pressure following the nozzle if installations are not correct or venting is not working properly. 888/369-8721; www.enzusainc.com.Wohler inspection camerasVisual inspection camera systems (models VIS 250, VIS 350 and VIS 400) from Wohler USA have USB, VHS and SD card recording features. The VIS 250 is designed for tight
