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Carefree Fish 300W Aquarium PTC Ceramic Heater Anti Runaway Heating
✅ In stock
F
Grade
Analysis Confidence
40%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 13, 2026 6:01 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 📉A lower price did appear very recently, suggesting the market may revisit that level before long.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
5/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Carefree Fish
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Dual‑Independent Chips: Each chip runs independently. If one chip fails, the other can still maintain proper heater operation.
✓PID Control: Delivers precise temperature accuracy of ±0.5℉ with variable‑frequency heating. As water temperature nears your set value, heating output gradually reduces. Upon reaching the target temperature, it runs at low 50W power for energy‑saving maintenance.
✓r will automatically stop working and display "Er". The dual water level sensor design ensures that the heating element will not be damaged due to low water levels.
✓Dual Overheat Protection: Two independent temperature controllers are built inside. The heater automatically shuts down at high temperatures to achieve anti‑runaway heating and protect your fish from overheating.
✓PTC Ceramic Heater: Compared with nickel‑chromium wire heaters (quartz & titanium heaters), it delivers faster heating speed and more stable heating performance. Under identical operating conditions, the PTC ceramic heater provides higher temperature accuracy and helps prevent dangerous temperature spikes caused by device malfunction.
⚙️ Specifications
1.39 pounds
Carefree Fish
B0C2DCCMYJ
SZQSJRB5
November 10, 2023
9.96 x 4.8 x 3.23 inches
9.1 x 3 x 1.2 inches
Carefree Fish
1 year
Black
300W(20~50Gal)
Adult
Item Weight
1.39 pounds
Manufacturer
Carefree Fish
ASIN
B0C2DCCMYJ
Item model number
SZQSJRB5
National Stock Number
70121801
