Camco TST MAX RV Toilet Treatment Drop-INs | Control Unwanted Odors and Break Down Waste and Tissue | Septic Tank Safe | Hibiscus Breeze Scent | 10-pack (41603) Automotive

(10 customer reviews)


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Essential for RV Holding Tanks: Eliminates odors and helps break down waste in the RV holding tank Ultra-Concentrated Formula: Just (1) Drop-IN works with up to a 40-gallon tank RV and Marine Approved: Does not contain the toxic, formaldehyde-releasing ingredient bronopol; Safe for all septic tanks Great Scent: Hibiscus Breeze Quantity: (10) Drop-INs/bag
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SKU: B0B7HK5YTN Category:


Camco TST MAX RV Toilet Treatment Drop-INs are the best option for regular use in RVs. These drop-ins will keep your toilet bowl clean and odorless, with the TST additive keeping bacteria under control to minimize odors. As an added bonus, this product is phosphate free and safe for septic systems when used as directed.

From the manufacturer

About Camco Manufacturing

Camco; Camco Manufacturing

Our Brands:

Our diverse flagship brands include: Rhino, TastePURE, Hydro Life, TST, Power Grip, Eaz-Lift, Life is Better at the Campsite, FasTen, Black Boar, Currituck, Kuuma, Olympian, TRAC, Crooked Creek and Camping Essentials.

Camco makes quality products for RVing, boating, camping, towing, tailgating, grilling and more. Our products help take your passion for the outdoors to the next level.

At heart, Camco is a small company with big aspirations. Since 1966, we have earned a reputation for providing superior goods with high customer approval.

We also work with inventors, entrepreneurs and small businesses to bring innovative products into the marketplace.

At our core, we believe in manufacturing exceptional products and delivering superior service – all while providing a great customer experience.

Our company headquarters is located in Greensboro, North Carolina. Camco also has numerous manufacturing facilities in the United States and around the globe.

Explore your outdoor passion with Camco. Great memories are only an adventure away.

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Additional information







Item Weight

‎1.16 pounds

Package Dimensions

‎9.57 x 6.97 x 3.03 inches

Item model number


Manufacturer Part Number




Customer Reviews

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4.6 out of 5 stars

27,662 ratings
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4.6 out of 5 stars

Best Sellers Rank

#19 in Automotive (See Top 100 in Automotive) #1 in RV Sewer Chemicals & Cleaners

Date First Available

March 22, 2018

10 reviews for Camco TST MAX RV Toilet Treatment Drop-INs | Control Unwanted Odors and Break Down Waste and Tissue | Septic Tank Safe | Hibiscus Breeze Scent | 10-pack (41603) Automotive

  1. Dan Breeden

    Super easy to use and makes a huge difference with RV toilet, especially when camping off the grid and you can’t empty the black-water tank for a few days.I also use partial bags for a portable camping toilet and it makes all the difference in eliminating odors. Makes your bathroom smell faintly of oranges. Not sure how much it helps break down waste, but it causes no issues when it’s time to dump the waste and leaves no residue.Honestly, after using these on several trips, I went and bought more and have resolved that I will never run out. It makes the waste emptying task much less unpleasant.

  2. Marine Dave

    These are a must have, especially if youre not in a place with a sewer hook up at the site. They do work and make a big difference in my opinion. MY only recommendation is making sure the lid is closed and if you damage it wrap the tub up in a plastic bag or put in a different airtight container. I didnt and I dont know if its the moisture in the air or something else but the coating gets a little weak or thin and they fall apart when touched.

  3. Northeast Consumer

    First time buyer of these and I am impressed. They keep the smell away and are so easy to use… no measuring…just drop it in and you are set.

  4. Katt

    I’m very pleased with this product. I ordered a pirta potty to use as a bedside camode and added this to the water. It reduces the need to empty every day and keeps the citrus smell also. I’m very pleased.

  5. Green Goddess

    I live in a rv trailer. The summer heat had my black tank very odiferous. I had to triple the amount used, but no odor now. Money well spent.

  6. Amazon Customer

    everyone of the packets in tub were broken open.

  7. Brahna M Pastorini

    I used the lavender for awhile I like this smell better

  8. Mya

    Containers works for me I don’t have any issues. I order them off of Amazon every year no problems. I keep them under my bathroom sink for when I need to drop one in. I only use one after I dump and flush the tank. I do leave water in the tank after I rinse. I have a nose that smells all and never had an issue using this product. The only time I can smell my tank is when it’s almost full. Normally we have 3 to 4 people camping every weekend as we are seasonal campers. When we have more I have used two but that Me being extra safe lol ? we just went 3 days with 100dg weather no issues and the price is great and fits my budget. This is my go to.

  9. Becky

    The product doesn’t really take the smell away, and you can’t smell it’s scent. But it does a great job on turning everything into liquid. Mine came damaged, out of the bags! Instead of just sending me a new one, I would have to go without the treatment and send it back. So I kept it. I had to have it! Good product! But customer service sucks!

  10. Devin

    Got these to help with an odor in our camper. We have a Traver trailer parked permanently at a lake and stared smelling an odor when we would arrive for the weekend. I do dump and rinse the tanks before we leave each weekend but didn’t seem to help. Trailer is also hard plumped in to sewer system with the gate closed when we leave. So I finally decided to try these out, and let me say they work great. Throw one in the toilet when we arrive and no smell all weekend, or when we return the next weekend. Definitely a must for campers.

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