Thetford Aqua MAX® Summer Cypress RV and Marine Holding Tank Treatment,16-ct Toss-Ins (96670)
Thetford Aqua MAX® Summer Cypress RV and Marine Holding Tank Treatment,16-ct Toss-Ins (96670)
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Thetford

Thetford Aqua MAX® Summer Cypress RV and Marine Holding Tank Treatment,16-ct Toss-Ins (96670)

Thetford Aqua MAX® Summer Cypress RV and Marine Holding Tank Treatment,16-ct Toss-Ins (96670)Thetford AquaMAX Summer Cypress 16 Ct Toss Ins Holding Tank Treatment
Pack Size:Single

Key item features

  • Enzyme-Based Treatment: Features a quick-acting, enzyme-based formula that effectively breaks down and liquefies waste and toilet paper in holding tanks.
  • Odor Elimination: Eliminates offensive odors from holding tanks while leaving behind a pleasant Summer Cypress scent.
  • Versatile Application: Designed for use in RV and marine holding tanks, as well as portable toilets.
  • Eco-Friendly Formula: Formaldehyde and Bronopol-free, compliant with regulations, and formulated with beneficial probiotics, making it safe for septic systems, campgrounds, and marinas.
  • Convenient Dosing: Each 1.5-ounce packet treats a 40-gallon holding tank, with 16 doses provided per resealable bag.
  • Non-Toxic Dye: Includes a non-toxic green dye for visual indication.
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Current price is $13.5156.3 ¢/oz
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Customer ratings & reviews

4.7 out of 5 stars
stars44 ratings40 reviews
How item rating is calculated
  1. 5 stars80% (35)
  2. 4 stars14% (6)
  3. 3 stars2% (1)
  4. 2 stars2% (1)
  5. 1 star2% (1)

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Showing 1-3 of 40 reviews

Feb 3, 2026
jesse
Top Reviewer
Item details
Size: Bag Of 16 Treatments
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

well what can I say; it works! keeps the smell away and breaks everything down. makes the flow out easier.

Helpful?5WLLWFJDF155985932498
Sep 7, 2021
ValS
5 out of 5 stars review

Great scent

[This review was collected as part of a promotion.] Have use their other products but have not had a chance to use this one individually. I was very happy with the other product and posted a review on that and I’m sure this one will be just as good as the one that I used I would recommend us as it is easy to use and portable to carry with a toss in a drawer

Review from Thetford Corporation
Helpful?5WLLWFJDF155985932498
Sep 5, 2021
EmilyW
5 out of 5 stars review

Great solution to a stinky situation

[This review was collected as part of a promotion.] I'm new to this whole camper toilet thing so without having much experience or much to compare it to, I don't think there could be a simpler way to deal with waste and tp buildup than this product. I followed the directions, toss it in and flush. I've only been using for a weekend so far but the scent has continually been fresh and no unpleasant smells sneaking through. I didn't think anyone would want to see a photo of the product in the holding tank so I included a picture of the product itself and the type of toilet I'm using this in.

Review from Thetford Corporation
Helpful?5WLLWFJDF155985932498