热卖潜艇AS100浴室止回阀排气扇浴缸加热器止回阀升级版，带可视透明窗

**Product Specifications:**

**Brand:** Submarine

**Model:** AS100

**Description:** The Submarine backflow preventer relies on fan blades and back springs for sealed anti-reflux to prevent odors. It is designed for self-closing and opening, with lightweight fan blade material. Prior to installation, it is recommended for customers to check the presence of negative pressure at the public flue outlet. If there is significant suction at the installation site, causing the product's sealing fan blades to be sucked in and remain open, it is not advisable to use the product.

**Upgraded Product:** During the upgrade period, two random versions of the AS100 model will be shipped. Customers are advised to refer to the specific product received for accurate details.

**Included Installation Accessories:**

1. No-nail adhesive

2. Aluminum foil tape

3. Expansion screws

**Features:**

- Material: ABS

- Anti-aging and crack-resistant ABS material

- Quick exhaust function with automatic valve opening during exhaust and closing when not in use

- Transparent main body with a visible window to observe the fan blade operation and internal fumes

- Two variable diameter rings included (75mm, 80mm, 100mm, 120mm, 110mm)

**Specifications:**

- Main Body Material: ABS+PC

- Outer Dimensions: 165×165mm

- Applicable Range: 80/100/120mm flexible pipes, 75/110mm rigid pipes

- Hole Diameter Requirement: Greater than 75mm and less than 120mm

**Installation Options:**

- Suitable for various installation needs with multiple connection options for 80/100/120mm flexible pipes and 75/110mm rigid pipes

**Additional Features:**

- Clear main body with a visible window to observe the butterfly fan blade operation for safety and durability

- Automatic closure to prevent insects from entering

- Four-fold sealing technology for efficient exhaust and clean bathroom environment

- ABS material for durability and longevity

- Universal design for installation on glass windows, ceramic tile walls, cement walls, and wooden surfaces

**Installation Methods:**

- Steel wire installation for wall holes with inner diameters of 75-120mm

- Drilling installation method for wall holes with inner diameters of 75-120mm

**Upgrade Level:**

- Equipped with a bubble level for better horizontal installation to ensure proper alignment

- Four layers of protection with a 17° inclined valve for gravity closure, silicone sealing ring, elastic sponge strip, and return spring for long-lasting performance

**Compatibility:** Suitable for various installation environments and can be installed on glass windows, ceramic tile walls, cement walls, and wooden surfaces

**Package Contents:** AS100 model, installation accessories, and user manual

**Note:** All dimensions are manually measured, and any discrepancies should be verified with the actual product received.