Professional-grade outdoor fly control in a simple disposable bag — the Catchmaster Pro Series Fly Bag Trap uses a water-activated attractant to lure flies by the thousands into a bag they can't escape from. Just add water, hang it downwind from where people and animals gather, and let it fill up. When it's full, toss the whole bag — no mess, no contact with dead flies, no cleanup. The Pro Series formula is designed for high fly-pressure environments like barns, livestock pens, and compost areas.Key Features Pro Series attractant — professional-strength lure designed for high fly-pressure environments Catches thousands of flies per trap — high-capacity bag design Just add water and hang — activates in minutes, no additional bait needed Disposable design — toss the whole unit when full, no cleanup required Works best in direct sunlight — heat enhances attractant effectiveness Chemical-free kill method — flies drown in the liquid, no pesticide spray Specifications Brand: Catchmaster Series: Pro Series Type: Disposable Bag Fly Trap Attractant: Water-activated (pre-loaded) Disposal: Single-use, toss when full Best For Barns, stables, and livestock pens with heavy fly pressure Poultry houses and kennels Compost and manure management areas Patios, decks, and outdoor entertaining spaces High-demand applications where professional-strength fly control is needed Hang downwind and away from areas where people and animals gather for best results. Replace when full or every 30 days.