New in the package TS-DSS3 -TS transducer shield $165.00 to your door in the USA. Listed on their web site for $189.00. Will require the L-Bracket for your Jack plate installation. Available from transducershieldandsaver.com.
I do have a L-Bracket for a 8" Slidemaster Jack Plate PN#LB-SM-6/8 new in the package with hardware $40.00 plus shipping. Listed on their web site for $49.95.
I'll combine the Shield and L-Bracket $205.00 to your door..