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FranchiseVerdict

COIT vs HHO Carbon Clean Systems

Franchise Comparison 2026

Both COIT and HHO Carbon Clean Systems are cleaning & maintenance franchises. COIT requires an investment of $64K – $225K while HHO Carbon Clean Systems requires $108K – $185K. COIT discloses average revenue of $1.1M; HHO Carbon Clean Systems makes no financial performance representation in its Item 19, which is voluntary under the FTC Franchise Rule. FranchiseVerdict rates COIT A (Strongest tier) and HHO Carbon Clean Systems B (Above average).

Investment Range
$64K – $225K
$108K – $185K
Franchise Fee
$27K
$45K
Royalty Rate
7.0%
6.0%
Average Revenue (Item 19)
$1.1M
N/ANo Item 19 representation
SBA Charge-Off Rate
Limited data
Limited data
Total Units
51
15
Unit Growth (YoY)
+2 units
-1 units
Year Began Franchising
1963
2020
FDD Year
2024
2025