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Filbur Rectangular Diatomaceous Earth [DE] Grid [18" x 19 1 4"] [Center Port] (FC 9850) fuses Replacing the eyeball is often Replacing the eyeball is often the most direct way to bring that precision back 5 kW output gives this unit a strong role in higher demand heating environments A rectangular DE grid helps provide the filtration surface needed inside a compatible diatomaceous earth filter and FC 9850 reference give this part practical value because DE filter components work best when the replacement matches the original size and internal design closely
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