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 CMP Manual Air Relief Valve with Pressure Gauge, part number 25357-273-564, is specifically designed for use with Pentair Triton II sand filters, including models TR100C and TR140C, as well as Triton C-3 filters. This assembly is a reliable aftermarket replacement that ensures accurate pressure readings with its built-in range indicator on the gauge, helping to maintain optimal filter performance. It is essential for releasing trapped air within the filter system, preventing over-pressurization and ensuring the longevity and efficiency of your filtration setup.
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Accurate Pressure Monitoring: The CMP Manual Air Relief Valve with Pressure Gauge 25357-273-564 features a built-in range indicator, providing precise pressure readings to help you maintain optimal performance in your Pentair Triton II and Triton C-3 sand filters.
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Essential for Safe Operation: This valve is crucial for releasing trapped air within the filter system, preventing over-pressurization and ensuring the safe and efficient operation of your pool or spa filtration setup.
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Reliable Aftermarket Replacement: Designed as a dependable aftermarket replacement, this assembly ensures compatibility and reliability when used with Pentair TR100C, TR140C, and Triton C-3 filters.
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Enhances Filter Longevity: By preventing over-pressurization and ensuring accurate pressure monitoring, this valve assembly contributes to the longevity and efficiency of your filtration system, reducing the risk of damage and costly repairs.
- (1) CMP 25357-273-564 Manual Air Relief Valve With Pressure Gauge Assembly
- Pentair Triton C Filter Models: TR100C, TR140C
- Pentair Triton II Filters
- Pentair Triton C-3 Filters
Note: This Air Relief may be compatible with your system, please refer to your owners manual to ensure compatibility.

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