Renuv Heavy Duty Dishwasher Cleaner XL Tablets 12 Count
- Item Volume: 0.6 fl oz
- Item Form: Tablet
- Scent: Unscented
- Container Type: Box
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A 12-count box of large 20 gram time-release dishwasher tablets built as one big descaler and deodorizer instead of several small tablets, aimed at a deeper clean than routine maintenance.
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ASIN: B0BZSZ4CB1Model: DWC240OZCategory: Dishwasher Cleaners
Overview
A large 20 gram XL dishwasher tablet sold as a 12 count box, positioned as a time release descaler and deodorizer built around one big tablet rather than several small ones.
The seller pitches the tablet size itself as the differentiator, one 20 gram tab said to clean up to twice what smaller tablets manage, so a single tablet stands in for what some competitors need two of. Real buyers back this up, describing it clearing entrenched grime and odor in machines that had gone unmaintained for years.
- 12 XL tablets at 20 grams each
- Time release effervescent formula
- Works across major dishwasher brands
- Septic safe per the listing
Pros and cons
- One reviewer suspects overnight runs trap moisture and let odor return between treatments
- Large tablet format costs more per box than smaller multi packs
Performance notes
One 20 gram tablet is used per treatment, built on a time release effervescent formula meant to dissolve slowly through the cycle rather than all at once, reaching mineral buildup, grease and odor causing residue.
Specifications
| Brand | Renuv |
|---|---|
| Model | DWC240OZ |
| Dimensions & fit | |
| Item Weight | 0.59 pounds |
| Item Dimensions | 3.6 × 2 × 3.2 inches |
| Capacity & performance | |
| Item Volume | 0.6 fl oz |
| Construction & materials | |
| Material Features | Biodegradable |
| Included components | |
| Unit Count | 12 |
| Included Components | 12 Dishwasher Cleaner Tablets |
| Warranty & support | |
| Warranty Description | 90 days |
| Other details | |
| Item Form | Tablet |
| Scent | Unscented |
| Container Type | Box |
| Number of Items | 12 |
| Part Number | DWC240OZ |
| Item Type Name | Dishwasher Cleaner |
Frequently asked questions
How many tablets does one box include?
12 XL tablets, each 20 grams, roughly a 12 month supply at monthly use.
Did it work on a dishwasher that had never been cleaned?
One reviewer used it on a rental unit a tenant had not cleaned in twelve years and reported it came out like new.
Is it safe for septic systems?
Yes, the listing states it is septic safe.