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Unique

Unique RV Digest-It Ultra Liquid RV Toilet Treatment, 32 Uses | Strong easy-measure liquid controls odors & quickly digests waste/toilet paper; routine RV holding tank treatment, 32 oz

  • Based on 12,746 reviews
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Scent: Ultra Easy-Measure


Size: 32 Fl Oz (Pack of 1)


Features

  • Prevents tank problems before they start; this RV black tank treatment breaks down waste and eliminates odors so buildup, clogs, and sensor issues dont develop in your RV toilet or holding tank
  • Powerful bio-enzymatic RV tank treatment; liquifies waste fast and works as a toilet deodorizer to help control odors, reduce sludge, and improve overall RV septic tank treatment performance
  • Easy-to-measure liquid RV toilet treatment; simple dosing makes it easier to maintain your RV toilet compared to toilet drop ins, helping keep tanks clean, trip after trip
  • Unique Cares program included with every purchase; helping you experience worry-free RVing with access to our Colorado-based Certified RV Tech Team for expert assistance with wastewater issues

Description

Unique RV Digest-It Ultra Unique Clean-It Unique Clear-It Unique Restore-It Unique Scrub-It Unique Store-It Visit the Store Visit the Store Visit the Store

Product Dimensions ‏ : ‎ 5.3 x 2.5 x 9.2 inches; 2.29 pounds


Item model number ‏ : ‎ 417-AZ


Date First Available ‏ : ‎ May 28, 2024


Manufacturer ‏ : ‎ Unique Manufacturing & Marketing


Best Sellers Rank: #73 in Automotive (See Top 100 in Automotive) #2 in RV Sewer Chemicals & Cleaners


#2 in RV Sewer Chemicals & Cleaners:


Customer Reviews: 4.6 4.6 out of 5 stars (12,746)


Item Form: Liquid


Scent: Ultra Easy-Measure


Specific Uses For Product: Routine RV Holding Tank Treatment


Surface Recommendation: plastic, rubber, metal, polyethylene, valve components


Special Features: Bio-enzymatic digestion formula, Compatible with black and gray tank systems, Designed for high-temperature RV conditions, Safe for seals and valve components, Ultra-concentrated liquid with measured dosing


Special Ingredients: Bacteria cultures, Enzymes, Surfactants


Cleaning Agent Formulation: Detergent


Container Type: Bottle


Recommended Uses For Product: Use regularly in RV black and gray holding tanks to support waste digestion, odor control, and ongoing tank maintenance


Product Benefits: Helps break down waste and toilet paper, Helps reduce buildup that can lead to clogs, Maintains tank performance with routine use, Supports odor control in holding tanks, Supports smoother tank emptying


Item Volume: 32 fluid ounces


Unit Count: 32 Fluid Ounces


Number of Items: 1


Size: 32 Fl Oz (Pack of 1)


Brand Name: Unique


Global Trade Identification Number: 25


Manufacturer: Unique Manufacturing & Marketing


UPC: 736683009725


Model Number: 417-AZ


Part Number: 417-AZ


Warranty Description: At Unique Manufacturing & Marketing, we stand behind what we make. If for any reason you are not satisfied with your purchase from Unique Manufacturing & Marketing (or one of our authorized sellers), you may request a refund or replacement with our 100% Satisfaction Guarantee (limited to original, end-user purchasers in the United States).


Material Features: Scented


Material Type Free: Bio-enzymatic liquid formulation


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Eco Friendly and Effective Septic Treatment Solution
Scent: Ultra Easy-Measure Size: 32 Fl Oz (Pack of 1)
★★★★★ 5 out of 5 stars If you're fighting flies, drain moths, or mosquitoes that seem to be coming up through your sewer lines in an RV, mobile home, fifth wheel, or portable toilet, this product is absolutely worth trying. I bought Digest-It Ultra after it was recommended by my friend Ralph, ChatGPT AI. I had reached the point where I was completely over battling the invasion of insects. I followed the directions exactly as written and even gave my sewer system a thorough flush beforehand to give the treatment the best chance of success. The live enzymes in the Ultra formula really do the heavy lifting. It helps break down waste, reduces odors, minimizes buildup in the plumbing, and most importantly, it helped eliminate the breeding ground for the insects. I noticed a significant improvement after about 3 days, and by 7 days the flies and other unwanted visitors were completely gone. After 30 days, the plumbing line from my toilet to the sewer hookup looked noticeably cleaner than it had in a long time. My advice is simple: buy the Ultra version, not the standard Digest-It. Use it exactly as directed and stick with the monthly maintenance schedule. For me, it's money well spent, and I'll definitely continue purchasing it. ... show more
Reviewed in the United States on July 1, 2026 by XLARRYBEARX
    • The best black tank treatment I've found—powerful enzymes, amazing results, and worth every penny.
Scent: Ultra Easy-Measure Size: 32 Fl Oz (Pack of 1)
⭐⭐⭐⭐⭐ Living in an RV comes with its share of challenges, but in my opinion, nothing is worse than having problems with your black tank. I've tried several holding tank treatments over the years that claimed they would control odors and break down waste, but most of them never lived up to the promises on the bottle. This product was completely different. I had a clog developing in my black tank, so I added the recommended amount and hoped for the best. About six hours later, the clog was completely gone. I honestly couldn't believe how well it worked. One of the reasons I chose this product is because it uses live enzymes instead of relying on heavy perfumes or harsh chemicals. The enzymes actually break down the waste and toilet paper, which is exactly what you want in a healthy black tank. In my experience, that's the difference between products that simply mask problems and one that actually solves them. After using this, I can definitely understand why enzyme-based treatments have such a good reputation. The value is outstanding, especially considering how well it performs. I would gladly pay two or three times the price to avoid dealing with another black tank clog. This has earned a permanent place in my RV supplies, and I won't be switching to another brand. **The best black tank treatment I've found—powerful enzymes, amazing results, and worth every penny.** ... show more
Reviewed in the United States on July 22, 2026 by J Elrod
    • Did My Research After Trying Many Others – This Is the One!
Scent: Plus Size: 32 Fl Oz (Pack of 1)
Did My Research After Trying Many Others – This Is the One! After trying several RV toilet treatments over the years with mixed results, I finally did some serious research before my next purchase—and Unique RV Digest-It+ is the one I landed on, and so far I'm convinced it's the best I've used. The extra-strength formula does an impressive job of liquifying waste and breaking down all brands of toilet paper without leaving anything behind in the tank, which is exactly what you need for a clean, problem-free black tank. The odor elimination is noticeably effective—no chemical smell, no unpleasant odors coming back up through the toilet, just genuinely fresh results. For RV use where black tank maintenance is a critical part of every trip, having a treatment you can actually trust makes a real difference in the overall experience. It's also reassuring that it's safe for all RV and marine holding tanks and septic systems, so there's no concern about damaging seals or sensors. After testing many products, this one stands out for its effectiveness, reliability, and clean results. If you've been bouncing between RV toilet treatments looking for the right one, do yourself a favor and make this your last stop. ... show more
Reviewed in the United States on April 12, 2026 by Jason Clinton
    • good product
Scent: Ultra Easy-Measure Size: 32 Fl Oz (Pack of 2)
this helps with the odor. The scent is not too strong it doesn’t really digest it so to speak, (are there any that really do?) but it does the job of helping keep the odor away in your black tank. I love how you can squeeze it and it measures it by itself or in the little thing and then you just pour it over and you’re not pouring too much. I’d love that part I would buy this again and again seems super safe and easy to pour. ... show more
Reviewed in the United States on April 4, 2026 by Sheri kane
    • Reduces odor in RV
Scent: Ultra Easy-Measure Size: 32 Fl Oz (Pack of 1)
Good product. Reduced odor in tanks
Reviewed in the United States on July 6, 2026 by Jean Pillow
    • Excellent!
Scent: Plus Size: 32 Fl Oz (Pack of 1)
This liquid does an excellent job for my black tank! Previously had major issue with pods that did not dissolve and created a failure in macerator. Will never go back to pods.
Reviewed in the United States on July 13, 2026 by F.M.
    • Excellent Product
Scent: Ultra Easy-Measure Size: 32 Fl Oz (Pack of 1)
Excellent for clearing sensors and smell. Per the instructions, it took a couple tanks to clear the sensors and smell, but well worth the wait. We bought a second bottle so we always have it on hand.
Reviewed in the United States on June 23, 2026 by TammyB
    • It worked, but I had to use the whole bottle and it was a little pricey
Scent: Ultra Easy-Measure Size: 32 Fl Oz (Pack of 1)
I like it I would buy it again. I do say it was the best toilet treatment that I ever used for my RVs. I did have a pyramid plug, but I did have to use the whole bottle. It worked with breaking up tissue and breaking up the pyramid Plug, but I still had some lingering smells. I’m going to at least keep it in my toilet for 3+ weeks because my septic system is not full yet and I only get it dumped out about twice a year because I have a large septic system so it will have a lot of time in my system to work but at the same time it took the whole bottle to be able to get rid of the smell and actually work I know it stated that it was 32 treatments. It was a little less than $30 and it was only one treatment for me. I did use about 20 gallons of water after just to push everything through the system. I live off grid where I don’t have a lot of water to spare when flushing I do the best I can so I probably wouldn’t have this problem if I had endless water to where I can use as much as I needed it to flush and also keep some water in my toilet bowl afterwards, but it did help me with my problem, but I did have to use the whole bottle so it was worth the $30 to help me with my problem, but most definitelyexpect to use the whole bottle at least half of the bottle when purchasing ... show more
Reviewed in the United States on March 29, 2026 by ebony Clark

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