Raypak 53A/55A/105A/151/153/155A/183A Pilot Orifice [IID] (003903F) modular Temperature sensors help relay accurate

Temperature sensors help relay accurate heat readings so compatible control systems can manage water temperature more consistently

replacing the pack is often the most direct path back to confidence

Useful during internal sand filter maintenance

The LS-55 fit and 23

Useful when the original jet feels flatter than it should

Raypak 53A/55A/105A/151/153/155A/183A Pilot Orifice [IID] (003903F) modular Temperature sensors help relay accurateThe 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.