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Super Premium Holding Tank - 20 gallon

Odor-free Trionic marine holding tank, 24”x16”x15”. Heavy-duty 3/8” polyethylene, top fittings, relief valve & Coast Guard compliant design.

Reference: SP-20
In Stock: 5
$418.00

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The Trionic Super Premium Marine Holding Tank is designed for long-lasting, odor-free and leakproof performance, providing superior reliability for marine sanitation systems. Made from 100% virgin 3/8” wall polyethylene, this tank is engineered for durability and resistance to corrosion, leaks, and odor permeation.

The top-mounted hose connections prevent sewage from standing in the discharge hose — one of the most common causes of odor permeation in marine holding systems. A raised vacuum relief valve with an easy-clean screw cap protects the tank from collapsing during dock pumpouts, even under high-vacuum conditions or when vents are clogged.

Each Trionic Super Premium Tank comes pre-fitted with high-quality components for dependable performance and easy installation.

Includes the following fittings:

  • 1/2” NPT x 5/8” barb vent assembly

  • Inspection port

  • 1-1/2” inlet

  • 1-1/2” outlet (pumpout)

  • Vacuum relief valve

All inlet, outlet, and vent fittings can be rotated to suit your installation needs. An optional overboard discharge is available for an additional $30.

Dimensions:

  • Length: 24 in

  • Width: 16 in

  • Height with fittings: 15 in

Built to exceed expectations, Trionic holding tanks comply with U.S. Coast Guard requirements, ensuring top-tier safety, sanitation, and performance for marine applications.

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