United Spas 1-3/16" HS Thermowell For 1/4" Bulb (TW107) spafilters Using the correct control pack

Using the correct control pack keeps the heating side of the setup aligned with the rest of the equipment

PresAir Trol TinyTrol SPNO latching air switch

and PLAS35 references

or service record

United Spas 1-3/16" HS Thermowell For 1/4" Bulb (TW107) spafilters Using the correct control packThe United Spas thermowell is designed for compatible applications using a 1 3 16 inch hole size and a 1 4 inch sensing bulb. Thermowells are useful because they provide a protected sensing location for the bulb while helping preserve proper placement within the system. This replacement is especially useful when the original thermowell is damaged, corroded, or no longer holding the sensing bulb correctly. Matching the correct hole size and bulb format