Replacement Hydraulic Damper for the Bayliss MK7 Hydraulicheck Solar Vent Opener
Overall length 6".
NOTE: If you have a MK7 solar vent opener that is no longer functioning, this is NOT the part you require to get it working again. The part which operates the unit is the MK7 standard power tube C3510 Standard, 55 to 75 degrees; or C3510 Orchid, 65 to 85 degrees.
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If the piston on the replacement tube is too long and won't fit into the opener, that means the tube is hot and the wax is expanding ... Just put the tube into the refrigerator for about one-half hour and push the piston back in until it is the length needed to install into the opener.
SAFETY NOTE: To install replacement tube, remove Bayliss unit from vent frame and bring to your workbench.