Thetford AquaMAX Spring Showers Holding Tank Treatment (32oz Liquid)
Thetford (AquaMAX line) · Sporting Goods > RV & Marine Maintenance

Era / Decade
Modern (2020s); AquaMAX is a recent PFAS-free reformulation of their historic chemical lines.
Material
Triple-enzyme liquid formula; HDPE plastic bottle with measuring cap; PFAS-free chemical composition.
Condition
New/Excellent; unused condition on a clearance shelf, though the label has a yellow clearance sticker which may leave residue if removed.
Demand Level
Moderate; demand is seasonal (peaks in Spring/Summer during RV season) and utilitarian.
Resale Value
Estimated Resale Value
$8.00 - $14.00 (Single unit value is low; better as a multi-pack flip)
Estimated Retail Value
$10.74 - $12.99
Comparable Sales
Recent eBay sales show individual 32oz bottles selling for $12-$15 including shipping, while 2-packs often sell for $22-$28. Net profit on a single bottle purchased at $7.50 is negligible after shipping and fees.
Description
32 oz bottle of Thetford AquaMAX Advanced-Action Holding Tank Treatment in Spring Showers Scent. This triple-enzyme formula provides maximum odor control and breaks down waste and tissue in RV and marine holding tanks. It is formaldehye-free and bronopol-free, making it campground friendly and compliant with stricter environmental regulations.
Key Features
Triple enzyme formula, Spring Showers scent, formaldehyde-free, breaks down waste/tissue, trusted RV maintenance brand.
Authenticity Indicators
High confidence; standard retail packaging, UPC 28985966350, and Walmart clearance tagging consistent with authentic mass-market retail inventory.
Flaws to Note
A large yellow Walmart clearance sticker is adhered directly to the primary label, which may deter collectors or 'new-in-box' perfectionists; potential for internal seal leaks during shipping if not taped.
Selling Guide
Where to Sell
eBay or Facebook Marketplace. eBay is better for multi-packs to offset shipping costs; Marketplace works well for local RV owners looking for a deal.
Selling Tips
Liquid chemicals are heavy and expensive to ship; this is only a 'good flip' if purchased in bulk (5+ bottles) to sell as a lot. Use keywords like 'RV sanitation,' 'Black water tank,' and 'Marine holding tank.' Always tape the cap shut before shipping to prevent leaks.