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Super Premium Holding Tank - 40 gallon-5

Odor-free Trionic marine holding tank, 40”x19.75”x15.75”. 3/8” polyethylene, top fittings, relief valve, Coast Guard compliant design.

Reference: SP-40
In Stock: 5
$542.00

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The Trionic Super Premium Marine Holding Tank provides the ultimate solution for odor-free, leakproof, and corrosion-resistant waste storage in marine environments. Built from 100% virgin 3/8” wall polyethylene, this tank ensures superior durability, strength, and long-term reliability for your vessel’s sanitation system.

Featuring top-mounted hose connections, the tank prevents sewage from standing in the discharge hose — the leading cause of odor permeation through sanitation lines. The raised vacuum relief valve with an easy-clean screw cap protects against tank collapse during high-vacuum dock pumpouts or when vent lines become clogged.

Every Trionic Super Premium Tank is precision-crafted and includes all essential fittings, each rotatable for flexible 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

An optional overboard discharge fitting is available for an additional $30.

Dimensions:

  • Length: 40 in

  • Width: 19.75 in

  • Height (with fittings): 15.75 in

Trionic holding tanks comply with U.S. Coast Guard requirements, offering a trusted combination of safety, sanitation, and quality construction for marine applications.

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