MFJ Weather-Proof Antenna Feedthrough Panels mounts in your window sill. Lets you bring all your antenna connections into your hamshack without drilling holes through walls.

Simply place in window sill and close window. One cut customizes it for any window up to 48 inches. Use horizontally or vertically. High-quality pressure-treated 3/4 inch thick wood has excellent insulating properties. Painted with a
heavy coat of long-lasting white outdoor enamel paint. Edges sealed by weather-stripping. Seals and insulates against all weather conditions. Gives years of trouble-free service. 3/4"D x 3-1/2"H x 48"W.

Inside/outside stainless steel plates bond all coax shields together to ground connections. Stainless steel ground post brings outside ground connections inside.