Customer Service
+1 888 812 6287


Couldn't load pickup availability
303 Automobile Tonneau Cover & Convertible Top Cleaner 30571CASE supplies six separate 16 oz spray bottles for permitted fabric/vinyl top and cover cleaning. Mariners Warehouse SKU 79939 is the full six-bottle case. Each bottle remains the underlying 30571 cleaner with its own wet-surface application and rinse method.
The cleaner lifts appropriate dirt, stains and environmental grime, with manufacturer-described residue-free rinsing under correct use. Cleaning prepares the surface for a separately selected protective treatment; it does not itself establish renewed fabric water repellency, UV protection or repair of torn fabric, seams and coatings. Identify fabric versus vinyl before deciding on follow-up care.
Rinse thoroughly to remove loose soil, then apply cleaner while the surface remains wet. Agitate lightly with a damp suitable sponge, towel or top-cleaning brush and rinse fully with clean water before the surface dries. For tougher stains, manufacturer guidance allows a 10–20-minute work period before gentle scrubbing and rinsing, subject to the exact label and conditions; never let the cleaner dry in place. Complete drying as the material requires before applying a separate approved protectant.
Review six separate 16 oz spray bottles and the selected configuration before ordering. Check the shipping options and delivery estimate shown for your destination at checkout.
Confirm 30571CASE and six separate 16 oz bottles. Identify actual top/cover material, coating and care requirements. Prepare a hidden test area, clean rinse water and suitable separate gentle agitation tools, with conditions allowing rinsing before the cleaner dries.
Read the shipping policy or contact Mariners Warehouse with product and destination questions.
WARNING: This product can expose you to chemicals including Ethylbenzene which is known to the State of California to cause cancer.
Review the 16 oz gel format, specifications and application directions.
Check fiberglass, gelcoat and finish suitability before use.
Ask about your surface and stain type before ordering.
Review shipping information and return conditions before purchase.
Application Guides
Confirm the exact item, task, surface and included quantity before starting.
Six 16 oz bottles; identify the actual fabric or vinyl top and coating.
Begin with clean water and the material-approved process.
Use the exact 30571 bottle directions.
Select a suitable damp sponge, towel or soft top-cleaning brush.
For difficult stains, follow the conditional 10–20-minute method without letting product dry.
Fabric repellency and vinyl protective care require their own material checks.
30571 cleans appropriate fabric and vinyl tops through a wet-surface, rinse-off process. Fabric Guard is a separate water-repellent treatment for its own approved clean, fully dry fabrics. Cleaning and protective treatment are different stages with different working conditions.
This case supplies six separate 16 oz cleaner bottles. The single 30571 listing is a separate purchase for a smaller supply. Neither includes a fabric repellent or vinyl protectant, so select protection independently after correct cleaning, rinsing and drying. Review the 303 Automobile Tonneau Cover & Convertible Top Cleaner - 16oz MPN - 30571 as a separately sold option.
Choose a product family by your actual task and verify every selected item separately.
Compare the exact material, cleaning or protective role and full package before choosing a treatment.
Find a separate washing or preparation product for its own approved surface and task. Check each item independently.
Return to the parent collection for another maintenance, replacement or upgrade task. Verify the selected item independently.
Need Help?
Need help comparing 303 Automobile Tonneau Cover & Convertible Top Cleaner, SKU 79939, MPN 30571CASE? Share your actual surface and finish, intended task and preferred package quantity. These details help us understand your selection question before you order.
Trusted by 50,000+ boat owners across the USA
Our team has years of experience in marine parts.
We respond quickly to get you the help you need.
We make sure you get the right part the first time.
Access to 50,000+ marine parts & accessories.
Thanks for subscribing!
This email has been registered!