You've established a perimeter and taken back your peace of mind. The last thing you want is to run-out of your excellent defense. We get it and we're here to make sure your home stays protected. For over 100 years ortho has provided trusted solutions for taking on pests. This Ortho Home Defense insect Killer for indoor and perimeter refill is the easiest way to keep your reusable Comfort Wand in action. It's the same formula you rely onto create a barrier that kills insects and keeps them from getting inside in the first place, providing up to 12 months of protection against ants, roaches and spiders indoors on non-porous surfaces. You don't have to compromise on home comfort with a formula dries clear and dries fast without the fumes. Simply detach the Comfort Wand from your empty bottle and attach it to this refill. It's a simple, economical way to ensure you're always ready-to reinforce your barrier and keep your home the sanctuary it should be. Let's solve this together, so you can continue enjoying your home.