

🔥 Elevate your spa game with precision heat control and safety you can trust!
The Funmit replacement kit includes a Stack Flue Sensor, High Limit Switch, and Heater Thermistor, all engineered for universal compatibility with Pentair spa heaters. Crafted from rust-free stainless steel, these components ensure precise temperature regulation, prevent overheating, and offer easy DIY installation—delivering reliable, long-lasting performance that keeps your spa safe and inviting.
| Manufacturer | Funmit |
| Item model number | 42001-0063S -- 42001-0053S -- 42002-0024 |
| Package Dimensions | 11.61 x 8.31 x 2.39 cm; 91 g |
| ASIN | B09SHH5FHJ |
B**C
Work well, Saved M-I-L $1,000s (and now we to use the spa when we visit I'm the winter 😉)
B**Y
Fixed my Pentair Mastertemp 400 Short Cycle - Service Heater Light issue
S**I
Perfect fit and fix
W**R
Great parts
J**E
Right parts
Trustpilot
3 weeks ago
2 days ago