I made a very long one of these plans by splitting it between two heaters (an extra long Fluval M50 and a shorter one I bought on Aliexpress). And my plan worked. The heater guard is a perfect match for both and has been in use for some time. No questions!
Tetra HT Submersible Aquarium Heater: Efficiently Regulate Temperature with Electronic Thermostat
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Sectional radiator Royal Thermo PianoForte 500, number of sections: 10, 11.7 m2, 1170 W, 800 mm.
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Hardy Leaf Black Forest Asian Java Fern Potted Live Water Aquatic Aquarium Plants For Freshwater Fish Tank By Greenpro Microsorum Pteropus
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π Fluval E300 Electronic Heater - 300W Advanced Aquarium Heater for Tanks up to 100 Gallons (A774)
9 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
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Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
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π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
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Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review