Groco Toilets, Manual & Electric, Fixed Mount & Parts
Groco Marine Toilets: A Century of Onboard Sanitation Excellence
Groco (Gross Mechanical Laboratories, Inc.) has been crafting precision marine products since 1918, and their approach to onboard sanitation reflects the same engineering philosophy that made the brand a cornerstone of marine plumbing. GROCO was born in the basement of a Baltimore row house in approximately 1918, and remains a family-owned business based in Stevensville, Maryland, dedicated to American manufacturing and providing durability and reliability in the challenging marine environment. That heritage runs straight through their line of fixed-mount marine toilets, manual and electric heads, and replacement parts.
The Groco K-Series and HF-B: Purposeful Design for Marine Heads
Groco's toilet lineup is built around proven product families designed for real-world boating demands. The flagship K-Series marine toilet is engineered for both versatility and simplicity aboard. Electric or hand-operated models are available, and electric models operate by touch of a button and can be quickly converted to hand operation by removing one easily accessible bolt. The K-Series is suitable for installation above or below the waterline, and a foot pedal water control allows the desired amount of flush water to be used while automatically shutting the water inlet off when the foot pedal is released — no valves to close or hand wheels to turn.
For smaller vessels or tighter head compartments, the HF-B Compact Marine Toilet delivers the same Groco reliability in a more space-conscious package. The GROCO HF-B compact head features a bronze base to stand up to rough seas and a simple-to-use hand pump for long-term reliable use.
Materials and Durability That Withstand the Sea
What truly distinguishes Groco toilets from many plastic-heavy competitors is their commitment to premium materials. The company is known for producing high-quality fittings and components made from bronze and stainless steel. Groco toilets are designed to withstand saltwater environments — made from corrosion-resistant materials and incorporating features that prevent clogging and odors, ensuring reliable operation even in harsh marine conditions.
Service Kits and Replacement Parts: Keeping Your Head Running
Groco's commitment to long-term serviceability is a major reason boaters remain loyal to the brand for decades. Groco offers a range of marine toilets with different sizes and configurations to suit different boat layouts and sanitation needs, with toilets constructed of durable materials and featuring reliable flushing mechanisms. Beyond the toilets themselves, Groco stocks a comprehensive range of repair and service kits — including the K Regular Repair Kit, HF Marine Toilet Service Kit, and the EB-Master Toilet Repair Kit — so owners can restore their heads to factory performance without replacing the entire unit. GROCO has been making the highest quality marine products for 100 years, founded on the principles of innovative design and sound construction, with the goal of being the choice for those who demand something a cut above the rest.
Whether you are outfitting a new bluewater cruiser, refreshing an aging coastal powerboat, or simply sourcing hard-to-find parts for a vintage Groco head, the brand's depth of product support makes the decision straightforward for serious boaters.