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.
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Pentair 178746Z Union Diamond Seal | Clean and Clear RP Filters
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Pentair 178746Z Union Diamond Seal is a genuine OEM part designed for Clean & Clear RP filters. This seal creates a watertight connection at the filter housing, protecting the system against leaks that reduce efficiency. Built from durable, chemical-resistant materials, it endures repeated service and harsh pool conditions without losing integrity. Installing this original Pentair seal restores proper function and ensures long-term reliability of your pool or spa filtration system.
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Leak Protection: The 178746Z diamond seal ensures a watertight union, preventing leaks that could cause pressure drops. Maintaining proper sealing helps safeguard against system inefficiency and water waste.
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System-Specific Fit: Designed exclusively for Pentair Clean & Clear RP filters, this OEM seal offers exact sizing and compatibility. Pool owners can rely on it for a seamless fit that matches the original design.
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OEM Durability: Manufactured to Pentair’s standards, the 178746Z provides factory-grade performance and dependability. Its proven reliability makes it a vital part of keeping filtration systems running smoothly.
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Resilient Materials: Constructed from long-lasting elastomer, the seal withstands chlorine exposure, pressure cycles, and frequent maintenance. Its robust design ensures consistent sealing through years of operation.
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Supports Clear Water: By maintaining consistent water flow and pressure, this part directly contributes to effective filtration. Reliable sealing helps keep pool or spa water clean, clear, and balanced.
- (1) Pentair 178746Z
- Pentair Clean and Clear RP Filters
