Raypak 53A/55A/105A/151/153/155A/183A Pilot Orifice [IID] (003903F) topsides Diffuser assemblies play an important

Diffuser assemblies play an important role in internal filter distribution by directing flow through compatible side-mount filter systems

This part has practical value because the one-circuit on-off configuration offers a more focused solution for simpler controlled applications where multi-function capability is not required

This replacement is especially useful when the original adapter is missing

The Hydro-Quip ECO-6 spaside topside panel overlay is designed for compatible small rectangular topside applications where the user-interface overlay needs replacement

Raypak 53A/55A/105A/151/153/155A/183A Pilot Orifice [IID] (003903F) topsides Diffuser assemblies play an importantThe Raypak pilot orifice is designed for compatible 53A, 55A, 105A, 151, 153, 155A, and 183A IID heater applications where the supported pilot fuel delivery opening needs replacement. A pilot orifice is useful because it helps meter fuel correctly to the pilot assembly, supporting cleaner ignition performance and steadier pilot operation. This replacement is especially useful when the original orifice is clogged, damaged, or no longer dependable.