Measuring for your window insert:
To determine the correct range of window insert you need, open your sash window and measure from left to right inside the channel that the sash window travels up and down in. You want to measure into the deepest part of the channel since the window insert will expand due to the spring loaded end.
Your measurement should be with the adjustment range chosen. You might notice that your measurement falls into two ranges, select the once that will allow some room below and above your window width. This will allow the unit to compress enough to insert into your channel and still expand enough for a tight fit. You can always call us for personalized guidance to ensure your choice is correct.
Will These Insert fit all Sash Windows?
All Security Boss Window Insert will fit channels that are at least 1" wide.
Included Weather Stripping:
Every Security Boss Sash Window Insert features a replaceable bulb seal that lines both sides of the insert. This bulb seal provides a superior weather seal between the insert and the wall and sliding door. This weather seal can also be replaced if needed very easily by sliding the weatherstripping into the t-slot groove on your sash window pet door.
The Weather Seal is a 3" wide vinyl weather stripping section that attaches to
the top of your sash window. When an insert is installed, your
window breaks the seal between the sliding pane and fixed pane. This
weather stripping will seal out any drafts.
Adjustable Width Range:
You will notice that your Security Boss Window insert has a spring-loaded end that compresses and extends within a range of 3.25" This allows you to compress your unit to fit into the channel that you sash window travels and then extend so that the unit will fit tightly. The two easy turn locking knobs secure this end so that someone from the outside would not be able to gain entry.
How does my Sash Window Lock?
We strongly suggest bracing the open sash window with a stick or an adjustable
brace bar; this immobilizes your sash window and is the most effective
way to secure your window. We also offer several locking devices
that can lock the open window to your frame via various bolt type locks.