Quiet, dust-resistant pet door designed for indoor use Key benefits - Keeps noise and dust down: Nylon brush seals reduce rattling and friction, cutting door noise and blocking dust from entering the home. - Stable indoor temperature: UV-resistant, high-quality ABS flap reflects heat and helps maintain indoor temperature. - Flexible control: Four locking modes let you match the door to your pet’s habits and your schedule. - Easy installation: Fits most doors up to 3 cm (1.2 in) thick and installs with only a few basic tools. Not compatible with tempered glass—follow the seller’s installation instructions. What it does (features and how they help) - Nylon brush seal: Soft, durable brushes smooth door movement to minimize sound and prevent dust ingress, keeping your home cleaner and quieter. - UV-resistant ABS flap: Tough, weatherable material resists fading and warping from sunlight and contributes to thermal reflection so your heating or cooling is less affected. - Four lock positions: Set the door to Open, Locked, In-only (allow entry from outside to inside), or Out-only (allow exit from inside to outside) to control pet access without constant supervision. - Door compatibility: Designed for standard interior and sliding doors up to 3 cm (1.2 in) thickness. Not for use with tempered glass panels—check installer guidance before cutting or mounting. Practical uses - Apartment balcony access: Let your cat or small dog go to a balcony safely while minimizing noise and dust from the outdoors. - Multi-pet households: Use In-only or Out-only modes to manage access between pets or prevent one pet from following another. - During travel or overnight: Use the Locked position to keep pets safely inside while you’re away or asleep. Installation notes and care - Measure door thickness before ordering—fits up to 3 cm (1.2 in). - Not suitable for tempered glass; consult the seller’s installation guide for correct mounting steps. - Requires only a few common tools for assembly and installation. - Clean the flap and brush seal occasionally to maintain smooth operation and reduce dust buildup. Materials and performance summary - Flap material: High-quality, UV-resistant ABS for durability and temperature reflection. - Seal material: Nylon brush to reduce noise and dust. - Locking options: Open, Locked, In-only, Out-only. - Door compatibility: Most doors ≤ 3 cm (1.2 in); not for tempered glass. Follow the seller’s installation instructions for best fit and long-term performance.