SKY 40mm LNB Holder for MK4 Zone 1 or 2 Dish This SKY 40mm LNB Holder for a MK4 Zone 1 or Zone 2 Dish allows the use of an LNB with a 40mm Collar to be Used instead of a Standard Sky LNB Please not that this LNB Holder is only compatible with the MK4 Zone 1 and Zone 2 Sky Satellite Dishes.
