ZXTQWX Fuel Filter Water Separator — 30 Micron, 25 GPM, Transparent Bowl

The ZXTQWX 496 is a heavy-duty fuel tank filter assembly that separates water and removes particles down to 30 microns for gasoline, diesel and biodiesel blends.

This compact assembly combines a zinc die-cast top cap with a transparent bowl and a replaceable 30-micron element to protect engines and equipment from contamination. Designed for inline fuel tank installation, the unit supports up to 25 gallons per minute and 150 psi working pressure while remaining simple to service. The translucent bowl and bottom drain make it easy to monitor water and sediment accumulation so you can maintain clean fuel flow with minimal downtime.

How do I install the ZXTQWX 496 on my tank?

Installation is straightforward and intended for hand-tight assembly to avoid damage. Mount the top cap to the tank valve at the port labeled "IN," fit the element and bowl with a light coating of oil on the gasket faces, and connect the outlet hose to the port marked "OUT." After assembly, run the system briefly and check all fittings for leaks.

• Top cap attaches to tank valve at "IN" port.
• Apply a thin oil film to both gasket surfaces before seating.
• Hand-tighten bowl only; avoid over-tightening to ensure future removal.
• Use the bottom drain valve to purge water and debris during service.

What fuels and contaminants does it handle?

The filter is compatible with common fuels, including diesel, unleaded gasoline, fuel oil and blends containing up to 20% biodiesel plus typical fuel additives. The 30-micron element captures rust, sand, sediment and free water, helping downstream pumps and injectors run cleaner and longer.

• Accepts diesel, gasoline, fuel oil, and up to B20 biodiesel.
• 30-micron element targets particulate contamination and sediment.
• Transparent bowl allows visual detection of water separation.
• Suitable additives and typical detergents are supported.

What are the flow and pressure specifications I should expect?

The assembly supports a maximum recommended flow rate of 25 GPM for powered systems and delivers approximately 5 GPM under gravity feed with a 24-inch head. The zinc die-cast top cap and fittings are rated for typical service pressures up to 150 psi, providing robust performance in a variety of fuel transfer setups.

• Maximum recommended flow rate: 25 gallons per minute.
• Gravity flow (24" head): roughly 5 GPM.
• Maximum working pressure: 150 psi.
• 1" NPT inlet and outlet fittings on the top cap for standard connections.

Who is this for: The ZXTQWX 496 is aimed at vehicle owners, fleet managers, marine operators and equipment users who need reliable water separation and particulate filtration at the tank. It’s a good fit for agricultural, recreational, construction and backup generator applications where routine fuel cleanliness prevents downtime and expensive component wear. If you want a straightforward, service-friendly filter assembly with clear visual monitoring and broad fuel compatibility, this model provides practical protection and easy maintenance.