American/Pentair PacFab Titan/FNS Manifold [w/Air Bleed] (59023700) audio The 003901F is a practical

The 003901F is a practical service part when a compatible Raypak heater needs a natural-gas MV burner orifice to restore proper fuel-delivery support

Improves plumbing serviceability and repair efficiency

2 inch slip x female pipe thread connection

and this Balboa Vico Viton 4

heater lockouts

American/Pentair PacFab Titan/FNS Manifold [w/Air Bleed] (59023700) audio The 003901F is a practicalManifolds with air bleed capability help direct internal flow while supporting venting performance in compatible filter assemblies. This American Pentair PacFab Titan FNS Manifold [w Air Bleed] (59023700) is engineered for fittings & valves: manifolds applications, where maintaining dependable sealing, fastening, flow routing, or assembly support is essential to overall system reliability. It supports consistent operation by helping connected