Feature: 1. 4 Port Aluminum Firewall Heater and A/C Bulkhead Inline is made of premium-quality aluminum material, ensuring long-lasting durability and resistance to corrosion. 2. Easy Installation: Designed for easy installation, making it a convenient choice for both professional mechanics and DIY enthusiasts. 3. 4 Ports Bulkhead 1 -6( 5/8\"-18) Heater Hose Fitting and 3 -10(7/8\"-14) Heater Ports. 4. They are designed to mount in your firewall as a quick and easy way to route Heater \u0026 A/C Hoses through firewall. Specification: Features: 4 Port Aluminum Firewall Heater and A/C Bulkhead Inline is made of premium-quality aluminum material, ensuring long-lasting durability and resistance to corrosion. Easy Installation: Designed for easy installation, making it a convenient choice for both professional mechanics and DIY enthusiasts. 4 Ports Bulkhead 1 -6( 5/8"-18) Heater Hose Fitting and 3 -10(7/8"-14) Heater Ports. They are designed to mount in your firewall as a quick and easy way to route Heater & A/C Hoses through firewall. Specifications: Item: 4 Port Firewall Heater and A/C Bulkhead Inline Product Material: Aluminum Color: Black Package Size: 19.5*6*6cm Package Weight: 220g Package List: 1* 4 Port Firewall Heater and A/C Bulkhead Inline Package List: 1* 4 Port Firewall Heater and A/C Bulkhead Inline