Three Heat - Four Position Switch with Knob Mayco they are not location specific

they are not location specific

adding Frit 3134 to a recipe (to supply boron for example) does not require reduction of clay content

Silica is one of the cornerstone materials of glaze and clay body formulation

glazes and overglazes

Three Heat - Four Position Switch with Knob Mayco they are not location specificThis switch is referred to as a 3 heat or 4 position switch. It's compatible with all Olympic electric kilns. This switch replaces previous versions of the same switch and comes complete as pictured with a new switch knob. The new knob is required as older previous switch versions knobs won't fit. Wiring Diagram Compatibility Chart