Paul from SWISCO responded:
November 10, 2017
From your photos, this appears to be a 5/8" Series 600 tilt balance. When measuring the diameter to verify, measure the plastic tube, not the interior spring. Our Series 600 balance tubes are metal, not plastic, so they hold up UV light. For 28-1/2", go up to the S600-29 with a blue tip. Our charging tool, 75-006, would also be helpful in the installation. Look over our media guides on the right for further help.
|