Clevis Slip Hook With Latch, Blue, 1/4-In. Air Filters the black plastic ring that

the black plastic ring that is inside the gray rubber casing of the Perfect Seal can be removed

No hot spots or blowing heat ¥ Patented Thermal Slots maximize heat flow yet maintain a low surface temperature ¥ Easy to use manual controls with adjustable thermostat - 3 Heat settings ¥ Silent operation - perfect for family rooms and bedrooms ¥ Durable

Includes 1 lock & 2 keys

Ice & Snow

Single test/silence button mutes unnecessary alarms and tests function

Clevis Slip Hook With Latch, Blue, 1/4-In. Air Filters the black plastic ring that1 4 Inch , Blue Clevis Slip Hook With Latch, Designed For Making Quick Connections With Chain, Boxed Loose.