Ideal Pet Products Ruff-Weather Pet Door-Medium housebreaking Supports up to 4 dogs

Supports up to 4 dogs (Add-On collars sold separately

static stimulation level

The turquoise nylon strap is adjustable to fit neck sizes from 5

CORRECTIONS: The fully waterproof T&B DUAL has two different correction types

Ideal Pet Products Ruff-Weather Pet Door-Medium housebreaking Supports up to 4 dogsThe Ruff Weather Pet Door was designed to handle all types of climate conditions, while boasting great energy efficiency, thanks to this doors double flap feature! Structural foam plastic frame that adapts to doors ranging from 3 4 to 1 3 4 in thickness. Double, flexible clear vinyl flaps create a 3 inch air pocket for maximum insulation and energy efficiency. Optional Ruff Weather Pet Door Wall Kit is designed for installation in walls from 4 3 4 to