Fan-tastic Vent Pop 'N Lock Screen White. The Pop 'N Lock screen easily pops into your existing Fan-Tastic Vent Fans covering the pre-existing screw holes. Cleaning your screen is now a breeze with the Pop 'N Lock screen from Fan-Tastic Vent. Features of Fan-tastic Vent Pop 'N Lock Screen No assembly Covers existing screw holes Unscrew old - pop in new Simple and secure Package Contents: Fan-tastic Vent Pop 'N Lock Screen Fan-tastic Vent K2035-81: Pop 'N Lock Screen White