![Shakespeare 5228-4 4′ Heavy – Duty Extension Mast [5228-4]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/shakespeare-5228-4-4-heavy-duty-extension-mast-5228-4.webp)
Description
Product
Shakespeare Galaxy® Style 5228-4 4′ Heavy-duty Extension Mast
Like the 5228, but 4′ length (nominal).Constructed of high-quality Shakespeare white fiberglass, and finished to match Galaxy antennas.This 1 1/2″ d”iameter extension mast can be used to increase height of an antenna and thus improve effective range, or to boost placement of an antenna above on-board obstructions.
IMPORTANT! If the combined length of your antenna and all extensions is more than 8 feet. you MUST use an upper support bracket
- Stainless steel upper and lower ferrules with standard 1″ – 14 thread
- Suggested mount: Shakespeare Style 409-R or 410-R Mounting Kit
- One section, actual length 44″
- Shakespeare Limited Warranty: 5-Years
Specifications:
- Type: Extension
- Box Dimensions: 3″H x 3″W x 55″L WT: 2.8 lbs
- UPC: 719441200077
Quick Guide (pdf)
![Sudbury Elastomeric Marine Sealant – 10oz Cartridge – White [300]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/sudbury-elastomeric-marine-sealant-10oz-cartridge-white-300.webp)
![Whitecap C.P. Brass Sillcock 1-5/8″ Base 3-3/16 Depth[P-2452C]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/whitecap-c-p-brass-sillcock-1-5-8-base-3-3-16-depth-p-2452c.webp)
![Jabsco Mag Drive Centrifugal Pump – 14GPM – 110V AC[436979]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/jabsco-mag-drive-centrifugal-pump-14gpm-110v-ac-436979.webp)
![Scanpod Helm Pod System – White[SPH-SYSTEM-W]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/scanpod-helm-pod-system-white-sph-system-w.webp)
![Blue Sea 7542 C-Series Flat Rocker Circuit Breaker – Single Pole – 15A [7542]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/blue-sea-7542-c-series-flat-rocker-circuit-breaker-single-pole-15a-7542.webp)
![Presta PACE Heavy Cut Compound – 32oz [133132]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/presta-pace-heavy-cut-compound-32oz-133132.webp)
![Ancor Premium Electrical Tape – 3/4″ x 66′ – Orange[334066]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/ancor-premium-electrical-tape-3-4-x-66-orange-334066.webp)