Although the Levelok, Quick Connect Leveling System fits almost any type, style or brand of ladder, it was originally designed to be used with articulating ladders. These ladders tend to be somewhat heavy and bulky. The Levelok (KeyLok) System keeps the weight and bulk off the ladder until the accessory is needed, thereby enabling quick, safe attachment or detachment of a product that meets all the North American, portable ladder standards, including the recently published ANSI, A14.8 Ladder Accessory Standard. This qualifies the Levelok Leveling System to be used on ladders up to and including a Type 1AA, 375-pound duty rating. This product is approved for use on the following ladders: Extension Ladders, Articulating Ladders, Straight Ladders, Combination Ladders, Sectional Ladders, and Step Ladders.
