3M™ DBI-SALA® Confined Space Integrated Manhole Collar Davit Mast Base fits 20 in. to 22 in. (50.8 to 55.8 cm) diameter opening.

Manhole collar davit base fits 20 in. to 22 in. (50.8 to 55.8 cm) diameter opening.

The series hoist system bases are designed for manhole and confined space entry/retrieval applications. Portable units are constructed of lightweight high strength aluminum and adjust to fit most standard entries. Our permanent and clamp on bases are available in aluminum, zinc plated and stainless steel construction offering maximum flexibility. We offer bases for a variety of applications including floor, wall, core, deck, flush, barrel, forklift and hitch mount to name just a few. All bases are designed to use in combination with an davit mast, and together form a perfectly matches confined space rescue and work support system. When it comes to confined space entry/rescue, it is essential that equipment operates perfectly and quickly. DBI SALA® has an extensive line of rescue and retrieval systems with decades of proven field service. Safety engineers and site directors trust DBI SALA® for the type of high quality, rugged systems that will ensure top performance when it is needed the most. Show Less