Reels and Alert Markers

Defender Spools
Defender spools are one of many unique products introduced by Halcyon. The Halcyon Defender spool blends uncompromising quality with ideal weight characteristics, allowing ease of deployment and years of trouble-free use. Halcyon Defender spools are equally at home navigating through caves or shooting a surface marker while ascending from your favorite ocean dive.
• Key Features of the Defender Spool
• Milled from a solid piece of Delrin for durability and balance
• Stainless Steel 3 ¾” double-end bolt snap for easy attachment
• Defender spools come with #24 braided nylon line and are available in the following sizes:
75’ (23m) 100’ (30m) 150’ (46m)
Defender spools are one of many unique products introduced by Halcyon. The Halcyon Defender spool blends uncompromising quality with ideal weight characteristics, allowing ease of deployment and years of trouble-free use. Halcyon Defender spools are equally at home navigating through caves or shooting a surface marker while ascending from your favorite ocean dive.
• Key Features of the Defender Spool
• Milled from a solid piece of Delrin for durability and balance
• Stainless Steel 3 ¾” double-end bolt snap for easy attachment
• Defender spools come with #24 braided nylon line and are available in the following sizes:
75’ (23m) 100’ (30m) 150’ (46m)
Price: $1295NT

Diver Alert Markers
Halcyon Diver Alert Markers provide maximum visibility and redundant flotation to support diving safety and peace of mind. Marker buoys are essential safety equipment in the event of separation from the dive team or surface vessel.
Key Features of Halcyon Diver Alert Markers:
• Easily inflated at depth
• Diver Alert Markers use an integrated pressure-relief valve, allowing them to be deployed from depth
• Oral inflate marker does not use a pressure-relief valve; it is suitable for surface deployment
• When deflated, all markers fit in a Halcyon thigh pocket or backplate Storage Pak
• Big and Super Big Alert Markers are marked with Coast Guard approved SOLAS reflective tape
• Semi-closed Alert Markers have a baffled bottom for filling with a regulator’s second stage
• Halcyon Diver Alert Markers (except semi-closed model) feature our No-Lock® (one-way valve)
construction for oral inflate or LP hose connection
Halcyon Diver Alert Markers provide maximum visibility and redundant flotation to support diving safety and peace of mind. Marker buoys are essential safety equipment in the event of separation from the dive team or surface vessel.
Key Features of Halcyon Diver Alert Markers:
• Easily inflated at depth
• Diver Alert Markers use an integrated pressure-relief valve, allowing them to be deployed from depth
• Oral inflate marker does not use a pressure-relief valve; it is suitable for surface deployment
• When deflated, all markers fit in a Halcyon thigh pocket or backplate Storage Pak
• Big and Super Big Alert Markers are marked with Coast Guard approved SOLAS reflective tape
• Semi-closed Alert Markers have a baffled bottom for filling with a regulator’s second stage
• Halcyon Diver Alert Markers (except semi-closed model) feature our No-Lock® (one-way valve)
construction for oral inflate or LP hose connection
Price: $2,600NT Oral
Price: $3,300NT Semi Closed



