Hudson 13194 Commercial Bak-Pak Sprayer, 4 Gallons Extra large fill opening prevents spills when adding chemical 48 PVC power sprayer-style hose Locking large poly control valve  comfortable, thumb operated Extra long 20 fiberglass/poly spray wand Bonus nozzle system with 4 different spray settings Powerful piston pump Left or right handed pumping action Chemical-resistant straps with adjustable pads 1 year warranty