3M™ DBI-SALA® Advanced Lower Mast Extension, 8518003, for upper offset davit mast, green, silver, 45 in (114.3 cm)3M ID 70007496642. Details45 in (114.3 cm) 3M™ DBI-SALA® Advanced Lower Mast Extension for use with upper davit mast3M™ DBI-SALA® Advanced Lower Mast Extensions are designed for use with our 3M™ DBI-SALA® Advanced Adjustable Offset Davit Mast, 8518001, 11.5 in x 27.5 in (29.2 cm x 69.8 cm) and 3M™ DBI-SALA® Advanced Adjustable Offset Davit Mast, 8518006, 23.5 in x 42.5 in (59.7 cm x 108 cm). The extensions provide the flexibility to change the overall mast height of your system in the field. For added versatility, you can customize either one of these davit masts with up to two lower mast extensions, 90 in (228.6 cm) max length for 3M™ DBI-SALA® Advanced Adjustable Offset Davit Mast, 8518001 and 78 in (198.1 cm) max length for 3M™ DBI-SALA® Advanced Adjustable Offset Davit Mast, 8518006. The extensions are available in 21 in (53.3 cm), 33 in (83.8 cm), 45 in (114.3 cm) and 57 in (144.8 cm) lengths for maximum customization options and scenarios. Constructed from anodized and powder coated aluminum, these units are not only extremely lightweight, they are durable and built to last. When it comes to confined space entry/rescue, it is essential that equipment operates perfectly and quickly. 3M™ DBI-SALA® has an extensive line of rescue and retrieval systems with decades of proven field service. Safety engineers and site directors trust 3M™ DBI-SALA® for the type of high quality, rugged systems that will ensure top performance when it is needed the most.114.3 cm lower davit mast extensionFits Advanced offset davit mastsCombine up to 2 extensionsExtends your davit mast heightLightweight, corrosion resistant aluminum construction