CRL 7'' Stainless Steel Speak-Thru
The CRL Stainless Steel Speak-Thru provides natural voice transmission. Offset slots in front and rear prevent tampering from the outside, and stop drafts to the interior. Speak-Thru has a brushed stainless finish, and comes in two sizes. Two sets of screws accommodate glazing from 1/4" to 1-1/4" (6 to 32 mm) thick.