Shakespeare Galaxy 4-Foot Heavy-Duty Extension Mast

The Shakespeare Galaxy 4-Foot Heavy-Duty Extension Mast is constructed of high-quality Shakespeare white fiberglass, finished to match Galaxy antennas. It is designed for boaters who want a shorter extension option to increase antenna height or clear onboard obstructions.

The 1-1/2-inch diameter mast uses stainless steel upper and lower ferrules with standard 1"-14 thread, requiring a Style 409-R or 410-R Mounting Kit (sold separately). If the combined length of your antenna and all extensions exceeds 8 feet, an upper support bracket must be used. Browse more options in our VHF radios and antennas category.

Key Features: 1-1/2" diameter, 44" actual length, white fiberglass matching Galaxy antennas, stainless steel upper/lower ferrules, requires 409-R or 410-R mounting kit, upper support bracket required over 8' combined length, 5-year warranty.

Frequently Asked Questions

How does this compare to the 8-foot extension mast? It's a shorter 4-foot version for smaller height adjustments, using the same construction and ferrule threading.

Do I need extra support if I use this? Yes, if the combined length of your antenna and all extensions exceeds 8 feet, an upper support bracket is required.

Does this include a mounting kit? No, a Style 409-R or 410-R Mounting Kit is required, sold separately.