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Shipping, Delivery, Return Information, and Warranties
Master Spa – X300713 – 5.5 kW M7 Heater Assembly for 501 & 510 Plastic Spa Packs
5.5kW M7 Heater for Plastic Packs
(2) X801830 – 12 inch by .25 inch A&B M7 Temp/High Limit Sensor
(2) X277700 – Master Spas 2 inch Heater Tailpiece
(2) X802900 – Master Spas Heater Split Nut
(2) X801765 – Heater Gasket O-Ring
Need the 12 inch Sensor only?
Refer to X801830 – 12 inch by .25 inch A&B M7 Temp/High Limit Sensor
All heaters come with 1-year warranty from the day of purchase. Shipping is not included in the warranty of the heaters. If you, the customer, return any of the said listed items back to Master Hot Tub Parts you, said customer, are responsible for the shipping cost.