Lysol Professional 74278 Disinfectant Toilet Bowl Cleaner 32 oz
- 9.5% hydrochloric acid thick formula
- Kills Staph, Pseudomonas, E. Coli, HIV-1 on hard nonporous surfaces
- Clinging liquid for longer contact
- Cleans, disinfects and deodorizes the entire bowl
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A strong acid bowl cleaner for stubborn stains in busy bathrooms, with disinfection on top. The listing gives no directions, scent or contact time, so the label is your guide.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B001B09F8GModel: Professional 74278Category: Toilet Cleaners
Overview
A thick hydrochloric acid liquid does the work in this Lysol Professional bowl cleaner. It clings to the bowl surface for longer contact, dissolving stubborn stains on contact while it disinfects and deodorizes the whole bowl.
Acid chemistry dissolves stubborn stains on contact, and the same pass disinfects and deodorizes. The listing says little else: no scent, no contact time and no directions, so plan to read the label.
Who it's for
Bowls with built-up stains in shared or heavily used bathrooms. Households that prefer acid-free products, or that want an automatic tank tablet, should look at a different cleaner.
Pros and cons
- Acid formula dissolves stubborn stains
- Clinging liquid extends contact time
- Kills a named range of germs
- Deodorizes as it cleans
- Directions and contact time not listed
- Strong acid, not a gentle cleaner
- Disinfects hard nonporous surfaces only
Performance notes
Hydrochloric acid dissolves stain deposits on contact, and the thick liquid slows runoff so more of it stays on the stained area. Germ kill claims apply on hard nonporous surfaces when the label directions are followed. Brushing and flushing timing comes from the label, not this listing.
Specifications
| Brand | Lysol |
|---|---|
| Model | Professional 74278 |
| Capacity & performance | |
| Item Volume | 32 oz |
| Other details | |
| Item Form | Thick clinging liquid |
| Surface Recommendation | Hard, nonporous surfaces |
| Cleaning Agent Formulation | 9.5% hydrochloric acid |
| Specific Uses For Product | Toilet bowl cleaning and disinfecting |
| Special Features | Cleans, disinfects and deodorizes |
| Germs killed | Staph, Pseudomonas, E. Coli, HIV-1 |
Frequently asked questions
How much cleaner is in the Lysol Professional 74278 bottle?
The title lists a 32 oz bottle. The bullets do not restate the size or say how many cleanings it covers.
Is Lysol Professional 74278 a drop-in tank tablet?
No. It is a liquid applied to the bowl, where it clings to stains and the bowl surface. Nothing in the listing supports placing it in the tank.
Does the Lysol Professional toilet cleaner have a scent?
The listing says it deodorizes but does not name a scent.