Original SUNSUN Waterproof Tube – HW-304 A/B & HW-404 A/B UV Filter

This listing is for 1 piece original waterproof tube, specially designed for SUNSUN HW-304 A/B and HW-404 A/B UV canister filters.
Supplied directly from the SUNSUN manufacturer, brand new and ready for installation.

The waterproof tube is a critical sealing and water-flow component.
If your filter has leaks, reduced flow, or damaged tubing due to aging or UV exposure, replacing this tube is the most reliable and cost-effective fix.

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Compatible Models

• SUNSUN HW-304A

• SUNSUN HW-304B

• SUNSUN HW-404A

• SUNSUN HW-404B

⚠️ Please confirm your exact model (A or B version) before purchase.

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Why Replace the Waterproof Tube

• Prevents water leakage around UV filter system

• Restores proper water flow and pressure

• Avoids replacing the entire filter unit

• Essential maintenance part for long-term use

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Why Choose Original SUNSUN Spare Part

• 100% original manufacturer part

• Perfect fit—no modification required

• UV-resistant, durable material

• Reliable sealing compared to aftermarket tubes

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Package Includes

• 1 × Original SUNSUN Waterproof Tube

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Important Notes

• This listing is for ONE waterproof tube only

• UV filter unit and other accessories are not included

• Images are for reference only

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Fix Leaks the Right Way

Do not risk water damage or poor filtration with worn tubing.
Choose this original SUNSUN waterproof tube to keep your HW-304 / HW-404 UV filter running safely and efficiently.