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Seamark Nunn

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All Outboard Motors
Petrol Outboard Engines
Electric Outboard/Inboard Engines
Used Outboards
Honda Outboards
Mercury Outboards
Suzuki Outboards
Control Cables, Steering & Tuning
Fuel Tanks & Accessories
Fuel Lines & Connectors
Outboard Motor Flushers
ePropulsion Electric Outboards
Minn Kota Trolling Motors
Outboard Trolleys
Outboard Lifting Brackets & Pads
Outboard Lifting Slings
Propeller Guards
Engine Kill Switches and Lanyards
Generators
Generator Accessories
Engine Spray Paint
Evinrude & Johnson Parts
Engine Starter Cord
Honda Parts & Accessories
Inboard Engine Parts
Instruments & Gauges
Mariner & Mercury Parts & Accessories
Motor Locks & Security
Oils & Lubricants
Outboard Tiller Extensions
Outboard Engine Service Kits
Propeller Bags
Ruddersafe Products
Spark Plugs
Sump Pumps & Oil Changers
Suzuki Spares & Accessories
Torqeedo Spares & Accessories
ePropulsion Spares & Accessories
Yamaha Parts

Inflatable Boats
Aluminum Hull RIBs
Honwave Inflatable Boats
Honwave Inflatable Boat Packages
Honwave Boat Accessories
Seago Inflatable Boats
Inflatable Boat Pumps & Adaptors
Boat Transom Wheels
Davit Kits & Storage Bags
Drain Bungs & Spares
Inflatable Boat Cleaners
Inflatable Boat Glue Fabric Patches
Inflatable Boat Handles Cleats Seats
Inflatable Boat Rowlocks
Inflatable Boat Paint
Inflatable Boat Pressure Gauges
Inflatable Boat Repair Kits
Inflatable Boat Solvent
Inflatable Boat Valves & Valve Spares
Lifting Rings & Towing Eyes
Aqua Marina Inflatable Boats
Trailer Wheels
Trailer Winches
Trailer Lighting
Trailer Wheel Hubs
Trailer Straps
Trailer Rollers
Mast Props
Trailer Security
Trailer Clips & Washers
Trailer Jockey Wheels
Launching Trolleys
Trailers For Inflatable Boats
Trailers for RIBs & Powerboats
Kayaks

Lifejackets
Lifejacket Re-Arming Kits
Liferafts
EPIRBs, PLB and AIS Beacons
LifeBuoys & Horseshoes
Safety Harnesses & Lines
Bosun's Chairs
Balls & Cones
Cable Wire Cutters & Bolt Cutters
Danbuoys
Fire Blankets
Fire Extinguishers & Fire Ports
First Aid Kits and Bags
Flares & Distress Equipment
Fog Horns
Gas Petrol & Carbon Monoxide Alarms
Grab Bags
Hydrostatic Release & Straps
Jacklines & Stays
Lead Lines
Lifejacket Accessories
Lifejacket Bags
Lifejacket Belt Packs
Liferaft Cradles & Straps
Lifeslings & MOB
Man Overboard Systems
Nausea Control
Pet Buoyancy Aids
Radar Reflectors
Safety Accessories
Safety Ladders
Sea Anchors and Drogues
Signs & Stickers
Survival Equipment
Throwing Lines
Waterproof Storage
Water Makers
Whistles
Wooden Plugs & Emergency Plugs

Anchoring & Mooring Lines
Backstay Adjusters
Braid On Braid Rope
Burgee Line
Carbine Hooks
Floating Rope
Guardrail Accessories
High Performance Ropes
Lazy Jack Kits
Matt Polyester Sheet Rope
Monel Seizing Wire
Rigging Links
R-Clips
Rigging Screws
Pre-Stretched 8 Plait Rope
Rope Mini-Reels and General Purpose
Rope Storage
Rope Thimbles
Sail Control Furling
Sail Feeders
Sail Tell Tales
Sail Ties
Sheet Bags
Shock Cord Elastic
Shroud Covers & Boots
Soft Shackles
Splicing & Sail Repair
Rigging Terminals
Webbing
Whipping Twine
Wire Rope Grips

Buoyancy Aids
Caps & Hats
Cap Retainers
Deck Shoes
Dinghy Boots & Shoes
Dinghy Gloves
Fleece & Jackets
Hiking Pants & Shorts
Knee Pads
Luggage
Rash Vests
Sailing Wellies
Socks
Spray Tops & Salopettes
Sunglasses & Retainers
Warm Gloves
Wetsuits
Yachting Clothing
Footwear

Adjusters & Shroud Plates
Buckles
Buoyancy Bags
Burgees
Calibration Stickers
Cleat Accessories
Open Cleats
Jam Cleats
V Cleats
Cam Cleats
Clam Cleats
Course Cards
Deck Bushes
Deck Eyes & Clips
Deck Hardware
Dinghy Blocks
End Plugs
Fairleads
Eye Plates & Pad Eyes
Goosenecks
Halyard Locks
Hooks
Inglefield Clips
Inspection Hatches
Kicking Straps & Parts
Laser Spares & Accessories
Mast Floats
Mast & Boom Fittings
Mast Steps
Rig Tension Gauges & Load Measuring
Rope Stoppers
Rudder Accessories
Rudder Fittings
Sail Battens
Sail Numbers
Sail Rings
Sail Slides, Slugs & Jib Hanks
Self Bailers & Service Kits
Sheaves & Sheave Boxes
Shroud Covers
Slot Strip
Split Rings
Spinnaker Poles & Fittings
Spreader Hardware
Springs & Base Plates
Spring Clips
Swivels
Swivel Cleats
Tension Levers
Tiller Extensions & Accessories
Toe Strap Plates
Trapeze Fittings
Travellers & Track

Anchor Chain
Claw Anchors
Rocna Anchors
Danforth Style Anchors
Fortress Anchors
DC Anchors
Plough Anchors
Grapnel Anchors
Guardian Anchors
Inflatable Boat & PWC Anchors

Harken Element Blocks
Harken Line & Wire Blocks
Harken 2.25 & 3.00 Inch Blocks
Harken 57mm Blocks
Harken 40mm Carbo Blocks
Harken Midrange Blocks
Barton Stainless Steel Blocks
Barton Blocks Series 0 20mm
Barton Blocks Series 1 30mm
Barton Blocks Series 2 35mm
Barton Blocks Series 3 45mm
Barton Blocks Series 4 58mm
Barton Blocks Series 5 54mm
Barton Blocks Series 6 64mm
Barton Blocks Series 7 70mm
Stanchion Blocks
High Load and Foot Blocks
Wire Rope Blocks
Snatch Blocks
Cheek Blocks
Tufnol Blocks
Wooden Yacht Blocks
Barton Classic Wooden Victory Blocks
Spinnaker Blocks
Stanchion Lead Blocks & Fairleads

Bathyscopes
Binoculars & Monoculars
Bird Scarers
Buckets
Clinometers
Compasses
Davis Instruments
Eyelet, Turnbutton & Press Stud Kits
Fenders & Buoys
Fishing Equipment
Flags & Accessories
Hand Bailers
Hose Pipes
Keyrings
Ladders Steps Gangways
Rowlocks & Accessories
Paddles
Oars
Practical Gadgetry
Railblaza Products
Sailing Knifes and Multi-Tools
Scotty Products
Ski Equipment & Toys
Waterproof Cases
Winch Covers
Wind Indicators & Spares
Stove Lighters

Boomstruts & Vangs
Bullseyes
Cam Cleats
Cam Cleat Accessories
Cleats & Bollards
Clevis Pins & Rings
D & O Rings
Deck Fillers & Keys
Deck Hatch Accessories
Deck Organisers
Drain Plugs & Bungs
Drop Nose Pins
Easy Marine Products
Eye Bolts - Ring Bolts - Lifting Eyes
Fairleads
Fasteners, Catches & Hooks
Grab Handles
Hinges
Hatches & Portlights
Lifting Rings
Mast Steps & Wedges
Pad Eyes
Padlocks & Security
Rope Clutches & Jammers
Spinnaker Pole Holders
Stanchions & Accessories
U Bolts
Yacht Tiller Extensions
Winch Feeders
Winch Handles & Pockets
Winches
Winch Spares
Windlassess
Windlass Accessories

Anchor Connectors & Swivels
Anchor Chain
Anchor Lines
Anchor Bags
Boat Hooks & Ends
Bow Rollers
Chafe Guards
Chain Markers
Chain Repair Links
Chain Stoppers & Grab Hooks
Dock Fenders
Mooring Compensators & Accessories
Mooring Reels
Mooring Swivels

Halyard Shackles
Links
Galvanised Shackles
Stainless Steel Slotted Head Screw Shackles
Stainless Rigging Toggles
Stainless Steel Bow Shackles
Stainless Steel D Shackles
Stainless Steel Key Pin Shackles
Stainless Steel Quick Links
Stainless Steel Strip Shackles
Stainless Steel Twisted Shackles
Shackle Keys
Snap Shackles & Hooks

Barton Mainsheet Systems
IYE Traveller Systems
Harken Traveller Systems
Barton Mainsheet Travellers
Barton Drilled Track 20/26/30mm
Barton Sliding Bolt Track 20/26/30mm
Barton Beam Track 20/26/30mm
Barton 19mm I Section Track & Travellers
Barton 24mm I Section Track & Travellers
Barton 28mm I Section Track & Travellers
Barton 25mm T Section Track & Travellers
Barton 32mm T Section Track & Travellers
Barton 20mm T Section Track & Travellers

Cookers & Stoves
Dehumidifiers & Moisture Traps
Awnings
Boat Frying Pans
Cockpit Bags
Cushions, Seats & Table Supports
Drink Holders & Cup Holders
Hammocks
Hatch Mosquito Nets & Hatch Covers
Heaters & Gas
Kettles
Laundry & Cleaning Equipment
Mats
Sea Rail Covers & Bags
Sun Shades
Tableware
Vents
Fans

TruDesign Products
Ball Valves
Bilge Pump Accessories
Bilge Pumps
Float Switches
Fresh Water Pumps
Galley Pumps
Hose
Hose Clips & P-Clips
In-Line / Submersible Pumps
Jabsco Spares & Service Kits
Non Return Valves & Adapters
Pressure Switches
Showers
Sinks & Taps
Siphon Pumps
Toilets & Spare Parts
Thru-Hull Fittings
Water Heaters Calorifiers
Water Jerrycans
Water Purification & Filters
Water Pumps - Manual
Waste & Washdown Pumps
Water & Waste Tanks
Water Tank Gauges
Whale & Henderson Service Kits & Spares
Whale Quick Connect System

Refrigeration Units
Refrigerators

Admiralty Charts
Imray C Series Charts
Imray 2000 Series Chart Packs
Imray Y Series Charts

Jigsaws
Almanacs & Tidal Stream Atlases
General Books
Knots & Ropework
Logbooks
Navigation & Seamanship Books
Navigation Instruments
Cruising & Pilot Books
Racing, Dinghy & Performance Sailing Books
RYA Publications
Bosun's Whistles
Clocks & Barometers
Oil Lamp Spares
Ship's Bells
Nautical Tea Towels
Gift Vouchers
Sailing Watches
Sextants
Calendars

All Antifoul
Transducer Antifoul
Flag Antifoul
Hempel Antifoul
International Antifoul
Inflatable Boat Antifoul
Outboard & Sterndrive Antifoul
Seajet Antifoul
VC System Antifoul

Bilge Paint
Deck Paint
Gloss Paint
Undercoat & Primer

Epoxy Resin & Hardener
Epoxy Filler
Epoxy Accessories
Epoxy Solvent
Epoxy Cloth
Epoxy Pigment

GRP Repair Kits
Polyester Resin & Gelcoat
Acetone
Polyester Catalyst
Chopped Strand Matt & Glass Cloth
Mixing Pots
Polyester Pigment

Hull Anodes
Shaft Anodes
Strip Anodes
Disc Anodes
Engine Anodes
Sail Drive Anodes
Anode Accessories

Wood Screws
Panel Pins
Wing Nuts - Stainless Steel
Full Nuts & Nyloc Nuts - Stainless Steel
Dome Nuts - Stainless Steel
Machine Screws - Stainless Steel
Washers - Stainless Steel
Hex Head Bolts - Stainless Steel
Self Tapping Screws - Stainless Steel
Studding - Stainless Steel
Rivets
Split Pins

Boat Brushes
Canvas & Vinyl Care
Descaler
Fillers
Osmosis Treatment
Paint Strippers
Polish, Cleaners & Wax
Polyurethane Foam
Rust Converter & Primer
Scrubbis Products
Sealants & Jointing Compound
Sound Insulation
Thinners & Meths
Treadmaster
Varnishes
Wood Care
Tape
Tools

Eco Friendly Products
Glue & Adhesive
Lubricants
Paint Rollers & Trays
Paint & Jenny Brushes
Maintenance Tools
Abrasives
PPE, Gloves, Dust Masks & Goggles

Cover Accessories
Headsail Covers
Mainsail Covers
Power & Inflatable Boat Covers
Tarpaulins

Gas Cylinders
Gas Fittings

GPS Chart Plotters
GPS Chart Plotters & Fishfinders
GPS Hand Held
GPS Navigation Sensors

All VHF Radios
VHF Radios Hand Held
VHF Radios Fixed DSC
SSB Radios

Wind Speed & Direction Masthead
Windspeed Handheld

Navigation Lights
Interior & Exterior Lighting
LED Bulbs
Standard Bulbs
Torches & Spotlights

Solar Technology Solar Panels
Solar Panel Accessories

Antennas & Aerials
Antenna Mounts and Accessories
Horns
Bilge Blowers
Radios CD and Bluetooth Players
Windscreen Wipers

Wi-Fi Onboard
Speakers & PA Horns
Network Products
Electronic Charts
Standard Horizon Accessories
Simrad Navico Accessories
Raymarine Accessories
Nasa Marine Accessories
Icom Handheld VHF Accessories
Icom Fixed VHF Accessories
Garmin Accessories
Cobra VHF Accessories

Depth Sounders
Logs
Fishfinders & Sonar
AIS
Autopilots & Wheelpilots
Raymarine (Tacktick)
Radar
Navtex
Depth Sounders Hand Held
Electronic Compasses
Repeaters
Weather Instruments
Multifunction Instruments

Inverters
Split Charge Diodes
Battery Charging Packs
Battery Chargers & Mounts
Battery Monitors
Batteries
Battery Boxes & Holders
Battery Switches
Battery Terminals
Batteries - Torch
Battery Top Up Water

Switch Panels & Switches
Shore Power Equipment
Terminal Strips
Plugs & Sockets
Junction Boxes
Fuses
Electrical Cable Wire
Cable & Wire Crimp Terminals
Circuit Breakers
Busbars
Deck Seals & Glands

Free Delivery to most of UK for orders over £150. Click here for more information

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2 products

Alde Bubble Gas Leak Detector 10mm Copper

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Alde Bubble Gas Leak Detector 10mm Copper

Our price£96.95

RRP£101.05

View all products from Alde

Alde Bubble Gas Leak Detector 8mm Copper

Our price£89.95

RRP£94.22

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Boating, Chandlery & Marine Store

Tel: 01394 451 000

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Seamark Nunn Ltd.
400 High Road
Trimley St. Martin
Felixstowe,
Suffolk
IP11 0SG
United Kingdom

01394 451000

Opening Hours
Mon-Fri: 9.00am-5.30pm
Saturday: 9.00am-3.00pm

Sundays / Bank Holidays: Closed