Allegro 9510-50 MVP Confined Space Manhole Ventilation Passthru SR2K it extends around the entire

it extends around the entire circumference of the hard hat

The gas detector features the latest in Japanese micro-sensor technology

Combustible Gases (LEL)

15 each - 15" X 19" LightWeight Defender Pads

DIMENSIONS: Open: 74" L x 20-1/2" W x 9” H

Allegro 9510-50 MVP Confined Space Manhole Ventilation Passthru SR2K it extends around the entireAllegro's new 9510 50 Manhole Ventilation Passthru is a really cool piece of equipment. It is a incredibly simple way to ventilate a space while at the same time still allowing access to the space for your workers. It is an excellent and less expensive alternative to the Saddle Vent system. Allegro's Manhole Ventilation Passthru (MVP) is made with a low profile air vent for the manhole itself, a 90 elbow, and built in mounting. The length from the top