9300 GENERALAIRE 77B UNIFILTER FUEL OIL FILTER 🛢️

The Generalaire 77B Unifilter is a high-quality fuel oil filter designed for #2 oil or lighter. Built for durability and reliability, it protects your fuel system and ensures smooth operation of your heating equipment.

📝 Product Overview

The Generalaire 77B Unifilter features a durable, epoxy-coated galvanized steel bowl and the innovative 4EVERLoc Bottom Bolt Design, providing secure installation and long-lasting performance. ETL listed for safety and quality assurance, this filter is perfect for residential and light commercial fuel oil systems.

⚙️ Key Features

• 🏷️ Model Number: 77B

• 💨 Max Firing Rate: 10 GPH

• 💦 Max Flow Rate: 40 GPH

• 🔧 Max Working Pressure: 40 PSI

• 🌡️ Melting Point: 2150°F (1175°C)

• 🛡️ ETL Listed for fuel oil burning equipment

• 🔩 Tank Connections: 3/8" NPT

• 🏗️ Durable Construction: Epoxy-coated galvanized steel filter bowl, inside and out

• 🔄 4EVERLoc Bottom Bolt Design ensures secure installation

🔧 Technical Specifications

⚠️ Important Notes

• Designed for #2 fuel oil or lighter

• ETL listed for fuel oil burning equipment

• Ensure proper installation and maintenance for optimal performance

🔍 Symptoms Indicating Replacement

• Reduced fuel flow or pressure

• Oil burner flame instability

• Clogged or dirty filter

• Visible contamination in filter bowl

❓ FAQ

Q: What size tank connections does the 77B Unifilter use?
A: Standard 3/8" NPT connections.

Q: What type of fuel can I use?
A: #2 fuel oil or lighter.

Q: How often should I replace the filter?
A: Inspect annually or per manufacturer’s guidelines, replace if clogged or showing wear.

Q: Is it compatible with biodiesel blends?
A: Yes, up to B5 biodiesel blends conforming to ASTM D396.

🛒 Shopping Tips

• 🧭 Match the filter firing rate (10 GPH max) to your system requirements.

• 🔄 Check tank connection size (3/8" NPT) before purchase.

• 🔧 Ensure the filter bowl and 4EVERLoc design suit your installation for proper sealing.