This is a basic service kit for gas heaters made by Pentair. Suits all Mastertemp heaters including 125, 200, 300, 400, and HD models. Comes with AGS Sensor, HLS Sensor, Stainless Steel Thermistor (Temp sensor), Water Pressure switch and Flue Sensor. Can resolve many problems found in Mastertemp heaters.
Includes Parts: 5, 6, 7 & 16 in first diagram. Also includes Water Pressure Switch.
We recommend these kits be replaced every 3 years.
42002-0024S, 42001-0053S, 42001-0060S (3902), 42002-0025S, 42001-0063S