- 50-Watt $16.99 https://www.chewy.com/eheim-jager-thermostat-aquarium/dp/183238?
- 100-Watt $14.99 https://www.chewy.com/eheim-jager-thermostat-aquarium/dp/183236?
- 150-Watt $17.99 https://www.chewy.com/eheim-jager-aquarium-thermostat/dp/157992?
- 300-Watt $24.99 https://www.chewy.com/eheim-jager-thermostat-aquarium/dp/183234?
- 50-Watt $16.99 https://amzn.to/37Nh8m6
- 100-Watt $14.99 https://amzn.to/2Uq106Y
- 150-Watt $17.99 https://amzn.to/3g5FBHw
- 300-Watt $24.99 https://amzn.to/3m6RKQG