Safe for cassette toilets?

Hello, This is an enzyme-based holding tank treatment, which means it's safe to use in any type of holding tank (RV, Marine, truck) and in septic systems. Thank you

Can it be used in gray and black tanks the same way?

We really don't know about the use/purpose in the Gray tank, definitely in the black tank. Why not just something like Dawn dish detergent in the Gray tank? Just a thought, it's a good degreaser.

This product uses 8oz single use bottles and another company has 4oz single use bottles. Which do you need?

My tank is 50+ gallons. I tried the 4oz version with poor results. Switched to the 8oz bottle and it works just fine.

Thetford 96689 Aquamax Summer Cypress 6 8 Oz

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

479.98 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

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Description

🚐 Keep your RV fresh & clog-free, wherever the road takes you!

BULK VALUE PACK - 6 bottles of 8oz each for long-lasting freshness
FRESH SPRING SHOWERS SCENT - Eliminates odors with a crisp, clean fragrance
UNIVERSAL SAFETY GUARANTEE - Tested safe for all RV, marine, and septic systems
TURBOCHARGED WASTE BREAKDOWN - Triple enzyme power prevents clogs & residue buildup
ECO CONSCIOUS CAMPGROUND APPROVED - Formaldehyde & bronopol free, California compliant

Thetford 96689 AquaMAX Summer Cypress is a powerful, fast-acting holding tank treatment featuring a triple enzyme formula that breaks down waste and tissue to prevent clogs and residue. It offers a fresh spring showers scent that neutralizes odors while being formaldehyde and bronopol free, making it safe for all RV, marine toilets, and septic systems. This 6-pack of 8oz bottles is California compliant and campground friendly, ensuring eco-conscious freshness on every adventure.

Specifications

Asin	B08N8G1TGT
Best Sellers Rank	#183,002 in Automotive (See Top 100 in Automotive) #53 in RV Sewer Chemicals & Cleaners
Brand	Thetford
Customer Reviews	4.6 4.6 out of 5 stars (908) 4.6 out of 5 stars
Date First Available	11 November 2020
Exterior	Brushed
Item Model Number	96689
Item Weight	0.28 g
Manufacturer	Thetford
Manufacturer Part Number	96689
Model	Thetford AquaMAX Summer Cypress Scent RV Holding Tank Treatment, Formaldehyde Free, Septic Tank Safe, 6 Pk x 8oz (96689)
Product Dimensions	15.24 x 15.24 x 10.16 cm; 0.28 g

Reviews

User

Awesome tank treatment

This is the only tank treatment we use. It works great. We have never had an odor problem in our 5th wheel or Airstream. Highly recommend!

17.07.2026

User

Works the best

This stuff has worked the best in our RV

31.08.2026

User

Keeps the odors out

Works great I the tank to keep the odors out - especially during summer heat

27.08.2026

User

OK product

Good smell. Seemed to work a day or so in hot weather before noticeable odor.

7.07.2021

User

Great for rv

Works great for our rv

12.07.2026

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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479.98 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews

Thetford 96689 Aquamax Summer Cypress 6-8 Oz

Description

Specifications

Reviews

Common Questions