Marine Sea Strainers

Protect your marine engine's raw water cooling system with a quality sea strainer. Our selection includes raw water strainers, sight glasses, and replacement baskets from GROCO and other trusted marine brands. A properly installed sea strainer filters debris, seaweed, and marine growth before it reaches your raw water pump and engine, preventing clogs and costly overheating damage.

We carry the popular GROCO ARG series in sizes from 3/4" to 2-1/2", available with stainless steel or monel baskets for maximum corrosion resistance. Our inventory also includes sight flow indicators that let you visually confirm water flow through your cooling system at a glance — an essential safety check for any boat operator.

Need help choosing the right strainer size for your engine and through-hull configuration? Contact us with your boat and engine details and we will recommend the correct sea strainer setup for your vessel.