The Complete Diver: The History, Science and Practice of Scuba Diving is a comprehensive guide to the sport of recreational scuba diving. It is an important book not just for beginning divers and instructors but also for all who are interested in diving, marine science and ocean exploration. The Com...

This silicone O-ring is red in color, round in shape, has a durometer of 7OA, and is designed for use in a wide variety of sealing applications. Silicone is acceptable for temperature applications between -65 degrees F (-54 degrees C) to 450 degrees F (232 degrees C). It has good resistance to ozon...

The yellow Solid Color Nylon Flag measures 12” x 18”.  The flag is constructed of lightweight, yet durable, fade resistant nylon fabric.  Sewn-in brass grommets are included.  The flags are perfect for all weather conditions.

20 pcs of 3/16" inverted flare brake line nut. 3/8"-24 thread.

Replaces: Johnson/Evinrude: 778885, 5031411 Suzuki: 16510-87J00 Thread Spec: 3/4" x 16NPT OEM: OMC 5031411

The Sierra 18-8108 Hose Barb is interchangeable with the following: Mallory 9-38022. Each Sierra product meets or exceeds the original equipment part it replaces. Barb Size: 3/8" or 9.53mm; NPT Size: 3/8" or 9.53mm; Connection Type: Male.

Quad DC Water System PumpsSelf-primes up to 2.4M vertical liftFour-piston design delivers higher flow ratesQuick-connect plug-in ports for easy installationPressure-switch control to run the pump only as neededVoltage:12 (Vdc)Flow Rate:3.3 US Gallons/Min (12.5 Litres/Min)Pressure Switch Setting:15ps...

Toll Free Information Hotline 1-800-309-5190. Sales hours: Monday - Friday 8:30a.m. to 4:30p.m. Central Standard Time. These are the best boat covers available. They are suitable for STORAGE, MOORING, AS WELL AS TRAILERING. The cover is made from marine grade polyester canvass. The cover is made fro...

These snaps can be used with a canvas and other material for covers and canopies. It can be easily installed for any general or household application.

The AquaSketch Minno is the world's most convenient and durable way to take notes underwater. Not only does it simplify the task of writing or drawing, It also offers unlimited paper capacity making it unnecessary to waste time erasing during a dive. Small enough to fit in a pocket, the Minno can b...

Sea-Dog Line is a 3rd generation family company with a history of satisfied customers stretching back to the company's start in 1933. The company is the recipient of multiple industry awards for quality and efficiency.