The 3/4" (19mm) technovent is designed as a support devise used in conjunction with the 3/4" Smartvent.
Supavents, Smartvents pack
Sensor for measuring temperature
Latest in venting technology designed to reduce scrap, improve quality and save costs.
W66 N622 Madison Avenue - Cedarburg, WI 53012-0991- Phone 262-375-5600