Cart Pressure & Temperature Gauges Here you can find pressure and temperature gauges for plumbing and heating applications. View cart “1/2″ Male NPT x 2″ Long Thermowell” has been added to your cart. Pressure Gauges (8) Temperature Gauges (5) Tridicators (Pressure & Temperature) (2) Thermowells & Accessories (2) Winters Instruments (1)