303® Multi-Surface Cleaner – Perfect for hot tubs, spas, boats & RVs
Frequently Bought Together
Why Shop With Hot Tub Things?
Authentic & Genuine Products
Shop trusted inventory of original spa parts.
Competitive Pricing
Built value for genuine spa care.
Expert Customer Support
Need help finding the right item? We can assist.
Great Everyday Value
Strong fit and quality without overpaying.
Fast Free Shipping
Free shipping on orders $100+.
Satisfaction Guaranteed
Supported by our easy return process.
Key Features & Benefits
Safe for Multiple Surfaces
Formulated for vinyl, plastic, rubber, fiberglass, gel coat, and acrylic surfaces without causing damage. Ideal for spa covers, hot tub shells, cabinet panels, and accessories where material safety matters.
Streak-Free, Residue-Free Finish
Engineered for seamless compatibility with original mounting points for secure placement.Leaves surfaces clean and protected without oily buildup, haze, or film. The non-greasy formula enhances appearance while maintaining a natural, factory-clean look.
pH-Balanced & Material-Safe
Carefully balanced to prevent degradation, discoloration, or premature aging of spa components. Safe for regular use without compromising sensitive finishes or protective coatings.
Ready-to-Use Trigger Spray
No dilution or mixing required. Simply spray directly onto the surface and wipe clean for fast, effortless maintenance.
Built-In UV Protection
Helps guard against fading, cracking, and sun-related damage caused by prolonged outdoor exposure. Regular use supports long-term durability of spa covers and exterior components.
Biodegradable & Made in the USA
Environmentally responsible formula delivers powerful cleaning performance while remaining biodegradable. Proudly manufactured in the USA by the trusted 303® brand, known for premium surface protection solutions.
Product Overview
The 303® Multi-Surface Cleaner (part #30570CSR) comes in a convenient 16 fl oz trigger spray bottle, making it easy to apply exactly where you need it. Trusted by marine and RV professionals for over 40 years, this cleaner is now the go-to solution for hot tub and spa owners who demand the best.
Perfect For:
- Hot tub and spa covers
- Spa cabinets and skirting
- Acrylic hot tub shells
- Vinyl and plastic accessories
- Deck furniture and surrounds
- Marine and RV surfaces
Frequently Asked Questions
-
Yes! The 303® Multi-Surface Cleaner is specifically formulated to be safe for vinyl hot tub covers. Its pH-balanced formula won't degrade the vinyl or stitching, and it helps remove dirt, oils, and environmental contaminants that can shorten your cover's lifespan.
-
Absolutely. The 303® Multi-Surface Cleaner is safe for acrylic, fiberglass, and gel coat surfaces. It won't scratch or dull the finish, making it perfect for cleaning your spa shell above the waterline.
-
We recommend cleaning your hot tub cover with 303® Multi-Surface Cleaner every 2-4 weeks, or whenever you notice dirt buildup. Regular cleaning prevents contaminants from breaking down the vinyl and extends your cover's life by years.
-
The 303® Multi-Surface Cleaner removes dirt, grime, and contaminants, while the 303® Aerospace Protectant provides UV protection and conditioning. For best results, clean first with the Multi-Surface Cleaner, then apply the Protectant for long-lasting protection.
-
Yes, the 303® Multi-Surface Cleaner is biodegradable and safe to use around your spa. However, avoid spraying directly into the water. Wipe surfaces with a damp cloth to remove any residue before entering the spa.
-
The 303® Multi-Surface Cleaner is effective on most common stains including dirt, oils, and light mildew. For stubborn stains, allow the cleaner to dwell for 1-2 minutes before wiping. For heavy mildew, consider the 303® Mold & Mildew Cleaner for targeted treatment.
Related Products
