Designed for use with Solo Backpack Sprayers. Features padded adjustable shoulder straps, adjustable chest strap and adjustable waist belt. Fully enclosed back is padded for extra comfort. Fits only Solo Manual Backpack Sprayers. Clips or pins to secure straps at top of tank NOT included. For sprayers made AFTER 2013 you will need two of part# 4074425 (pin). Sprayers made BEFORE 2013 you will two of part# 4074412 (clip). Note: Does NOT fit the Solo Gas Powered Motorized Backpack Sprayer, or the Solo battery operated backpack sprayers.