Halcyon Closed 3.3' SMB

Halcyon Closed 3.3’ SMB

The Halcyon Closed 3’ SMB (Surface Marker Buoy) serves as a reliable, 1m long alert marker in highly visible orange. 

This closed-circuit SMB lacks an open bottom; consequently, divers inflate it using an inflator hose connected through the fitted one-way valve. 

An integrated pressure-relief valve is built into the design, specifically allowing for safe deployment from significant depths. This feature ensures maximum safety and operational efficiency during ascent.

Safety, Visibility, and Portability

Halcyon SMBs consistently provide maximum visibility and redundant flotation, which actively support diving safety and grant peace of mind. 

When completely deflated, this marker conveniently fits into a pocket or the backplate Halcyon MC Storage Pak, optimising portability. 

However, please note that due to its compact dimensions, we do not recommend the 3’ SMB as a primary marker for UK boat or shore diving. You should consider larger Halcyon models for primary use in those conditions.

Halcyon's primary SMBs that are acceptable to most UK dive skippers include:

• Halcyon Closed Alert Market 6' SMB
• Halcyon 6' SLIM Closed Alert Marker SMB
• Halcyon Closed Alert Marker 4.5' SMB

Closed 3.3’ SMB Key Features

• 200 denier nylon
• Lift capacity 2.7kg
• Length: 3.3’ (1m)
• Integrated OPV allowing safe deployment from depth
• Halcyon's No-Lock® connector for easy inflation
• Easily inflated at depth
• When deflated, fits in a pocket or backplate MC Storage Pak
• Marked with Coast Guard approved SOLAS reflective tape
• Lifetime Warranty on RF-welded seams

What’s the best SMB?

This is a question we often receive in-store, where it’s easy to showcase and demonstrate the various types of SMBs alongside the numerous reels we have in stock. 

However, with so many listed online, it’s not always straightforward to determine which SMB will best meet your needs.

While we recognise that everyone has their unique configurations and requirements, This Article aims to assist you in making your decision.

Halcyon SMB Maintenance

SHIPPING:

We aim to dispatch all in-stock items within 2 working days but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to current manufacturing or transport delays caused by global shortages and/or impeded production.

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information on delivery terms and returns.

Our current shipping rates are as follows:

• UK mainland orders £45 and over: FREE - DPD or alternative courier delivery*
• UK mainland orders under £45: £4.90 Fixed Rate - DPD or alternative courier delivery*
• Scotland Highland (inc. AB31+ Post Codes), Scottish Islands & Isle of Man: £9.90 Fixed Rate 
• Channel Islands & Northern Ireland: £14.90 Fixed Rate
• European Union: £13.90 + 5% of order value (maximum £30)
• Rest of the World: £19.50 + 8% of order value (maximum £55)
  
• BFPO Post Codes: £20 (see Delivery Terms for BFPO at end of this page)
  
• FPO & APO Unfortunately, we are unable to arrange delivery to FPO/APO addresses
• PO Boxes - All our PO Box deliveries need to be signed for, therefore, unless prior arrangements are made with us, we do not deliver to PO Boxes.

*The dispatch days listed in our product listings refer to working days, excluding weekends and UK holidays. Products that need to be ordered from the manufacturer or distributor's stock, are temporarily out of stock, are subject to backorders, or are marked as Special Orders may take longer to dispatch. We will notify you of this once your order is confirmed.

INTERNATIONAL EXCEPTIONS:

For international orders containing weights, cylinders (excluding suit inflation bottles), and Suex scooters, please contact us in advance before placing your order.

These products are not included in our global max-capped shipping rates. They are only shipped outside the UK mainland after the freight cost is calculated based on the parcel's total weight, dimensions, delivery location, and the courier service used. We will let you know the cost before processing any order.

All cylinders we ship within and outside of UK mainland are filled and tested on site before being emptied for dispatch. Cylinders shipped outside of the UK will be empty and will also have their valves removed, requiring reassembly after you receive delivery. Twinset manifolds and bands will also be removed and dispatched together with the cylinders for safe global shipping.

RETURNS & REFUNDS

We offer a 30 day return for any product sold under our Returns & Refunds Policy Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund. Detailed information is available in our Returns & Refunds Policy.

Email us at sales@dirdirect.com or call us on +44(0)1305 824 555

Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The goods will be inspected on arrival. 

Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges i.e. Free shipping for orders £45 and above) the UK shipping rate may be deducted from any UK mainland refund unless linked to a fault/defect claim. 

Please contact us with your order number and name before sending any returns to:

Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Mereside, Portland
Dorset, DT5 1FD 
United Kingdom

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information.