What is the ingredients of the solution used to kill the flies?

Active Ingredients: Sodium Lauryl Sulfate (0.08%). Inert Ingredients: Vinegar (5.00%), Water (94.92%). I suspect you could refill these with diluted Apple Cider Vinegar and unscented dish soap to break the surface tension like the Sodium Lauryl Sulfate does. Seems a waste to throw them out without experimenting.

Will this work with knats in the house ?

It worked for me. Had a bunch of them around my cats food and litter box. They'd drive me crazy flying around my face. Now there's only been a couple in the last week.

Flies flew all around traps, but not in them. Terro says that means they're not fruit flies, but they're too big to be gnats. What can they be? Help!

Drain flies and fungus gnats are about the same size as fruit flies. Feel free to contact our Consumer Relations Team at 1-800-800-1819 x 458 for further assistance.

Manufacturer	Woodstream Corporation
Item model number	T2503-3
Product Dimensions	5.72 x 5.72 x 4.45 cm; 249 g
ASIN	B0BX4GQF68

TERRO T2503-3 Ready-to-Use Indoor Fruit Fly Trap with Built-in Window - 6 Traps + 270 Days Lure Supply

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