1 marketplaces are selling it on Ebay with coupon codes. Other top features are mpn, Does not apply and manufacturer. Also screen windows ventilation hopper vent gl is one of the top sellers in and in 2021.

15-1/2 in. x in. in.
Hopper for Gl Block ONLY The Clearly Hopper-style vent to any 3 in. thick block sized used two 8 in. ambling gl window using individual The convenient access without compromising security.
It may either silicone method block ambly.
Secure be used in existing gl windows add a air option.
The included is mounted removable aluminum frame screen for use both new and Removable insects from Vinyl composition nothing rot or t Easy use and compared 1-year double and.
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