Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
The Jandy R0590700 Combustion Chamber Shelf Kit is a genuine OEM replacement kit designed for the Jandy JXi series gas heaters (models 200, 260 and compatible variants). This kit replaces the internal shelf portion of the combustion chamber, helping to restore optimal burner alignment, heat exchange efficiency and safe operation. By exchanging worn or eroded shelf components, you maintain factory-level performance and extend the lifespan of your heater system.
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Factory-Specified Replacement: Designed specifically for Jandy JXi models 200 and 260 (and referenced for 400) to ensure precise fit, proper combustion chamber geometry and alignment with burner envelopes.
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Restores Heat Exchange Efficiency: By replacing the worn combustion chamber shelf, the kit helps maintain proper flame path and exchanger surface integrity—minimizing heat loss and optimizing performance.
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Durable Construction: Crafted from materials rated for high‐temperature combustion environments, resistant to corrosion and thermal degradation for long-term reliability.
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Simplified Maintenance Upgrade: Enables efficient refurbishment of the heater’s internal chamber shelf without full chamber replacement—reducing downtime and cost compared to more extensive repairs.
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Preserves Operational Safety: Ensures correct spacing and structural support within the combustion chamber, maintaining safe burner operation, appropriate airflow and compliance with heater design parameters.
- Jandy JXI 200, 260, & 400 Heater Models