Tetra HT Submersible Aquarium Heater 200 Watt 40-55 Gallon

Tetra HT Submersible Aquarium Heater 200 Watt 40-55 Gallon

Marsoni

M251S

$31.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Tetra HT Submersible Aquarium Heater 200 Watt 40-55 GallonTetra's HT line of heaters are easy to use and work in aquariums ranging from 2 to 55 gallons. The HT10 and HT30 have electronic thermostats that automatically adjust heat output to keep water at a constant 78 degrees F. The HT55 is adjustable between 72 degrees F and 85 degrees F. All HT heaters have indicator lights to let you know when the heater is on heating the aquarium.

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A solidly constructed jig used for easily creating either a 5mm or 1/4" shelf pin holes. Mark your control line and place the jig on it while using two thumb screws that act as both a clamp and edge guide for perfectly aligned holes. Various thumb screw holes allows for holes that are closer to the edge of your work or for holes further in from the edge.

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Reviewed in the United States on February 18, 2026

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Juicer

San Leandro, US

★★★★★ 5

Good product

Size: 11 Holes

Works well for the must part. I ended up buying a different style bit collar stop because the one provided wasn't solid enough for me. Might be a personal preference

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Reviewed in the United States on January 7, 2026

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whodg

New York, US

★★★★★ 5

Awesome tool

Very easy to use, only issue I had was the location pin was a bit tight. Chucked it in the drill and polished it up with a scotch-brite and it worked perfectly. The end to end symmetry made it easy to move from one side to the other. Good price as well!

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Reviewed in the United States on September 24, 2024

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Road Warrior Ray

Pawtucket, US

★★★★★ 4

Excellent 11 hole jig

Size: 11 Holes

This jig worked excellently. It doesn't have any instructions, so I watched the video of it. I set it up the way the video showed, and I got decent results. Deducted a star since no instructions.

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Reviewed in the United States on April 18, 2026

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Janis E White

Lexington, US

★★★★★ 5

Perfect hole placement

Size: 11 Holes

Worked exactly as described.

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Reviewed in the United States on September 24, 2025