Skip to main content
Orders
My Account
Cart
Electronics & Navigation
Fishfinders, Chartplotters, Radars, Autopilots, etc.
Dry Pouches
Cell Phone Holders
Marine Navigation
Cameras
Marine Communication
Instruments
Connectors, Cables, Switches, etc.
Electronics Miscellaneous
Antennas & Mounts
Communications Equipment
Audio Equipment
In-Dash Digital Depth & Temp Gauges
Compasses, Sextants, Binoculars & Charting
GPS Units & Cartography
Mounts & Accessories
Antennas
Marine Audio
Electronics
Join the Mariners Club
Get exclusive mariners club offers sent right to your inbox and save on all your boating needs.
Join Now
Shop Our Summer Sale
Get ready for the summer boating season with our special summer offers!
Shop Now
Anchor & Docking
Boat Lift Motors
Fender & Dock Lines
Fenders
Anchor Line Hardware
Fenders, Adjusters & Accessories
Anchoring & Mooring Acc.
Hardware, Rollers & Tackle
Anchors
Shackles/Thimbles/Quick Links/Turnbuckles
Packaged Anchor/Fender/Dock Lines
Dock Lines
Bulk Anchor/Fender/Dock Lines
Buoys & Markers
Dock Hardware
Dock Edging & Bumpers
Windlasses & Winches
Lifting & Bow Eyes
Dock Hardware & Accessories
Buoys
Anchor Lines & Chains
Mooring Eyes
Line Throwers
Anchor & Dock
Join the Mariners Club
Get exclusive mariners club offers sent right to your inbox and save on all your boating needs.
Join Now
Shop Our Summer Sale
Get ready for the summer boating season with our special summer offers!
Shop Now
Safety Equipment
EPIRBS, Beacons, MOB Products
Paddles & Oars
Signaling Devices
Alarm Systems
First Aid / Insect & Pest Repellants
Flotation Devices
Emergency Equipment
Boat Hooks, Paddles & Oars
Safety & First Aid Kits
Emergency Lights
Signal Devices
Safety
Flares & Signal Kits
Protection & Safety
Rescue Boats
Join the Mariners Club
Get exclusive mariners club offers sent right to your inbox and save on all your boating needs.
Join Now
Shop Our Summer Sale
Get ready for the summer boating season with our special summer offers!
Shop Now
Marine Electrical
Anodes
Converters, Converter Chargers, Power Centers
Lighting
Switches
Circuit Breakers
Wire & Wiring Supplies
Flooded Lead-Acid Batteries
Breakers, Fuses & Fuse Holders
Electrical Miscellaneous
Panels, Terminal Blocks, Terminals, etc.
AGM Batteries
Wiring Accessories
Wire, Cable & Connectors
Battery Boxes, Terminals & Misc
Bus Bars & Terminal Blocks
Fuse Blocks
Fuses & Fuse Holders
Battery Management
Outlets & Plugs
Shore Power
Wire Wheels & Brushes
Power Distribution Panels
Electrical
Join the Mariners Club
Get exclusive mariners club offers sent right to your inbox and save on all your boating needs.
Join Now
Shop Our Summer Sale
Get ready for the summer boating season with our special summer offers!
Shop Now
Boat Maintenance
Maintenance items
Soaps and Washes
Cleaning Solvents
Abrasives
Personal Safety Equipment
Protectants and Waterproofing
Caulks, Sealants & Adhesives
Resins, Fillers & Fiberglass
Waxes, Polishes, Compounds
Paint Supplies
Engine Cleaners & Chemicals, Parts Washers
Antifreeze, Coolant & Accessories
Teak Products
Cleaners, Waxes, Mold and Odor Eliminators
Paint, Varnish & Solvents
Paint & Paint Accessories
Varnish & Wood Treatments
Cleaning & Care
Rudder & Shaft
Hooks & Snaps
Caddies & Drink Holders
Ladders
Flags
Shrink Wrap
Tools & Service Manuals
Cleaning Supplies & Accessories
Organizers & Storage
Coolers, Drink Holders & Bottle Openers
Flags, Pennants & Holders
Tape & Masking Products
General Acc Miscellaneous
Carpet & Flooring
Camping & Tent Gear, Outdoor Acc & Pet Pet
Kitchen, Bath & Laundry Accessories
Grills, Smokers, Camp Ovens & Fires
Keel Protectors
Air Horns
Wipers & Blades
Fire Fighting Equipment
Manholes & Hatches
Transfer Devices
Plaques
Registration Letters & Numbers
Check Valves
Life Floats
Closeouts
Clocks
Barometers
Roller Buttons
Kevels & Chocks
D-Rings
Bitts
Watertight Doors
Survival Accessories
Keel Coolers
Life & Work Vests
Stuffing Boxes
Water Pressure Systems
Rudder Bushings & Sheet Stock
Bumpers
Life Rafts
Gauging Tapes & Pastes
Press Fittings
Topside Accessories
Davits & Booms
Needle Scalers
Firestops
Join the Mariners Club
Get exclusive mariners club offers sent right to your inbox and save on all your boating needs.
Join Now
Shop Our Summer Sale
Get ready for the summer boating season with our special summer offers!
Shop Now
Engine Systems
Oil, Gear Lube
Fuel Lines/Fittings/Valves
Filters/Air/Fuel/Oil
Carburetors/Fuel Pumps
Fuel Miscellaneous
Engine Cleaners & Chemicals, Parts Washers
Engine Paint
Grease/Lubricants/Thread Lockers/Gasket Makers, etc.
Drives, Gearcases & Transoms
Spark Plugs/Tune-Up KIts/Ignition Parts
Fuel Additives
Engines/Powerheads/Transmissions
Cooling/Thermostats/Impellers
Engine/Parts Cleaners & Chemicals
Grease, Lubes, Thread Lock, Gasket Makers
Fuel System
Fuel Connectors
Engine Care
Fluid Extractors
Anodes
Oil Filters
Repair Manuals
Cans, Tanks & Accessories
Engine Parts & Consumables
Oil Changers, Additives, Sorbents & Accy
Gauges, Senders & Accessories
Filters (Air, Fuel, Oil)
Oil & Gear Lube
Engine Parts
Performance
Oil Mats
Motors
Join the Mariners Club
Get exclusive mariners club offers sent right to your inbox and save on all your boating needs.
Join Now
Shop Our Summer Sale
Get ready for the summer boating season with our special summer offers!
Shop Now
Hydrasearch
Hydrasearch
Aluminum Inverted Check Valves – Model PM1 (4”)
$
320.99
ADD TO CART
Hydrasearch
Bronze Inverted Check Valves – Model PM1 (3”)
$
671.69
ADD TO CART
Hydrasearch
Bronze Inverted Check Valves – Model PM1 (4”)
$
865.19
ADD TO CART
Hydrasearch
Aluminum Inverted Check Valves – Model PM1 (1-1/2”)
$
126.19
ADD TO CART
Hydrasearch
Aluminum Inverted Check Valves – Model PM1 (2”)
$
166.99
ADD TO CART
Hydrasearch
Aluminum Inverted Check Valves – Model PM1 (3”)
$
233.09
ADD TO CART
Hydrasearch
Galvanized Inverted Check Valves – Model PM1 (4”)
$
370.59
ADD TO CART
Hydrasearch
Bronze Inverted Check Valves – Model PM1 (1-1/2”)
$
222.19
ADD TO CART
Hydrasearch
Bronze Inverted Check Valves – Model PM1 (2”)
$
361.99
ADD TO CART
Hydrasearch
Bronze Inverted Check Valves – Model PM1 (2-1/2”)
$
497.79
ADD TO CART
Hydrasearch
Galvanized Inverted Check Valves – Model PM1 (1-1/2”)
$
245.59
ADD TO CART
Hydrasearch
Galvanized Inverted Check Valves – Model PM1 (2”)
$
197.29
ADD TO CART
Hydrasearch
Galvanized Inverted Check Valves – Model PM1 (3”)
$
325.29
ADD TO CART