Graco 25E578 KIT,MANI,OUTL,2150HS,TRI,OUT galloncapacity_23 gallons 3 16" X 3 4" Two Stage 3 16" X 3 4" Maintenance Number of Layers 8 ply Color Pattern Gray Product Type Ceiling Tile Sorbent Pad Flame Resistant Yes Dimpled Yes Backing Properties Leak Resistant Adhesive Backing No Backing Material Polypropylene Neutralizing No Incluces Coverstock No Volume Absorbed Per Pad 37 oz For Use With Chemical or Metal Type Universal Dispenser Box Yes Includes Coverstock No For Use With Universal Volume Absorbed Per Sock Boom 6 gal It is available in HS or 3A wetted section materials for your 2150HS tri outlet configuration 4 in the parts diagram) is designed for the h120 (QHE) model with SSA connection and a ball check