https://www.ebay.com/sch/i.html?_nkw=Allegro+9510+60+12+In+Manhole+Ventilation+Pass+Thru&_sacat=0&_dmd=2

Allegro 9510-60 12 In. Manhole Ventilation Pass Thru

Regular price
$287.00
Sale price
$201.00

Allegro Industries has been dedicated to offering high quality safety equipments, which will make safety compliance easier. Offering a complete line of products within specific categories including respirators, air sources, ventilation equipment, ergonomics, respiratory accessories, eyewear maintenance, and confined space equipment, we are the reliable single source of safety equipment. The Manhole Ventilation Passthru is designed to maintain and redirect air flow with minimal restriction into m