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🔥 Keep your pool heater cool, safe, and stress-free with precision you can trust!
The Pentair 42001-0063S Replacement High Limit Switch is a durable, brass-built safety device designed to prevent overheating in Pentair pool heaters by cutting off power at 135°F. Compatible with MasterTemp and Max-E-Therm models, it offers easy installation and is backed by a 12-month warranty and USA-based support, ensuring reliable, long-term protection for your pool or spa heating system.














| ASIN | B07GCVHVFC |
| Best Sellers Rank | #61,812 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #22 in Swimming Pool Heater Parts |
| Brand Name | Wholesale Sensors |
| Circuit Type | 1-way |
| Color | Brass |
| Compatible Devices | Pentair MasterTemp, Pentair Max-E-Therm, Pentair SR200, Pentair SR333, Pentair SR400 |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Male-to-female |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | Automatic |
| Current Rating | 15 Amps |
| Customer Reviews | 4.5 4.5 out of 5 stars (252) |
| International Protection Rating | IP00 |
| Item Dimensions | 2 x 1 x 2 inches |
| Manufacturer | Wholesale Sensors |
| Material Type | Brass |
| Model | 42001-0063S |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 120 Volts (AC) |
| Operation Mode | Automatic |
| Part Number | 42001-0063S |
| Switch Type | Limit Switch, Temperature Switch |
| Terminal | Through Hole |
| UPC | 757347651180 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 135 Degrees Fahrenheit |
| Warranty Description | 12-month warranty on any manufacturers defect from date of purchase. |
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