Common Mode Noise Filter – Coax Dog Bone Antenna Insulators (10 pack)Store/Antenna Products/Antenna Hardware, Coax, Wire, ConnectorsSKU DI-10$27.50Quantity:1 Add More Add to CartGo to CheckoutSave this product for later Favorite Favorited View FavoritesCustomer reviewsNo reviews yet. Only signed-in customers who bought this product can leave reviews. To leave a review, sign inShare this product with your friendsShareSharePin itDog Bone Antenna Insulators (10 pack)Store/Antenna Products/Antenna Hardware, Coax, Wire, ConnectorsProduct DetailsVery stealthy, strong, pair of 2 PVC, 2 1/4" long. 1" wide. 1 1/8" hole separation wire antenna insulators Package of 10 insulators Note: color may be black, gray or white depending upon inventoryShow More Typical user comment: The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill