The 7515 Tower Aspirated Shield Mount is used to attach the 43408 aspirated radiation shield to the top most mast of a UT20 or UT30 tower. The 43408 is a retired fan-aspirated radiation shield that typically housed the 43347 RTD probe. In July 2007, the 43408 was replaced with the 43502 radiation shield; the 43502 radiation shield does not require the 7515 mount to attach it to a mast. However, the 7515 remains available for existing 43408 customers. The 7515 is the gray bracket shown in the image.