Triton RO Cap
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Triton 4" RO Housing Replacement Cap
Maintain Peak Performance with a Secure, High-Pressure Seal.
Don’t let a worn-out seal or a cracked cap compromise your pure water production. The Triton 4" RO Housing Replacement Cap is an industrial-grade component designed specifically for standard 4-inch stainless steel Reverse Osmosis (RO) pressure vessels. Whether you are performing routine maintenance or fixing a leak, this cap ensures your system maintains the high pressure required for a spot-free finish.
Rugged Professional Engineering
Built to the same "no-shortcuts" standard as the Triton Ultra Cart, this replacement cap is engineered for durability and ease of service.
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High-Pressure Reliability: Precision-molded from heavy-duty ABS or Nylon (depending on the model) to withstand operating pressures up to 300 PSI without warping or weeping.
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Universal Compatibility: Designed to fit industry-standard 4" x 40" stainless steel housings. It serves as a direct replacement for Triton systems and is compatible with most standard 4040 commercial vessels.
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Tandem O-Ring Sealing: Features double O-ring grooves to provide a redundant, leak-proof barrier against the housing wall and the membrane permeate tube.
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Corrosion Resistance: The material is UV-resistant and chemically inert, ensuring it won't degrade when exposed to sunlight or water treatment chemicals.
Technical Specifications
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Housing Diameter: 4 inches
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Port Sizes: 1/2" FNPT (Feed/Waste) and 1/2" FNPT (Permeate) for high-flow efficiency.
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Material: Impact-resistant, high-density industrial plastic.
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Installation: Designed for use with standard "U-type" stainless steel clamps.
Recommended Maintenance
To ensure a perfect seal and extend the life of your RO system, we recommend:
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Lubrication: Always apply a thin layer of Triton O-Ring Lubricant to the O-rings before installation to prevent pinching.
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Inspection: Check for salt build-up or debris inside the housing rim before seating the new cap.