If you are sure you have your existing Aquastat manufacturer number this is a complete replacement. It comes with a temperature rise gel that you are supposed to place in the aquastat's well to improve performance and I did so the first time I replaced it but have found the gel to harden over the years was and I was struggling to pull the old temp lamp out of the building and I was afraid it would break inside. I didn't use it this time and everything was fine. The only thing I would wish for is a manufacturer's warranty, which I don't know about yet. The last one is 8 years old, I hope this one lasts the same.
Xiaomi iHealth Meter Thermometer White
24 Review
Room temperature and humidity sensor Aqara Temperature and Humidity Sensor white
25 Review
VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver)
24 Review
ICQUANZX LCR-T7 Transistor Tester: Advanced TFT Diode Triode Capacitance LCR ESR Meter
14 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review
π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
TV bracket Kromax DIX-18 black
52 Review
π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review