Choose the quantity the source actually declares
Cafiza's selected offer provides 100 tablets with a 2 gper-tablet specification. Dezcal's selected jar provides 900 gof powder. Rinza's selected record supplies 1 Lof liquid. Each can support its own quantity-price calculation, but the figures answer different questions. A per-tablet price is not directly comparable with a per-milliliter price as a measure of cleaning value or potency.
Do not add an assumed density
The site does not turn Rinza's 1 Linto 1,000 g, nor turn 900 gof powder into a working-solution volume. Those conversions would require properties or preparation assumptions that the purchase record does not establish. The Rinza retailer and maker also use differing ounce pairings, so the tool retains the common documented liter basis rather than silently selecting a new ounce figure. Packaging titles do not supply missing chemical data.
Keep total included mass separate from a dose
Multiplying 100E31 tablets by 2 ggives a declared aggregate tablet mass of 200 g. It does not mean 200 gof the product can replace a 900 gdescaler or determine how many cleaning cycles are appropriate. Ingredients and intended tasks differ. The tools never use aggregate mass to produce a universal chemical equivalence, a tank ratio or an approved-use count.
Compare appropriate alternatives after approval
Once the exact equipment and task requirements are resolved, a buyer can compare actual offers for the same reviewed product on a consistent basis. If the alternative changes form, code or concentration, review it as a new product. A lower price cannot settle an unverified compatibility question. The current basket keeps each selected product's unit separate and makes no effectiveness winner claim.
A standardized denominator can still be the wrong decision tool
Even if two product prices could be expressed per gram, different chemical roles and forms would remain. Cafiza's declared aggregate tablet mass does not make it a descaler, and a liquid milk cleaner's density is not established by its liter bottle. The useful comparison is usually between appropriate verified offers for the same approved task and product. A universal cheapest-per-gram list would hide those requirements. This reference keeps the separate bases visible and does not attach an unmeasured strength, efficiency or equipment-protection multiplier to make unlike products look comparable.
Sources & scope
Checked November 4, 2026. Manufacturer and retailer references support the specific statements. Dated displayed prices are not final checkout quotes, performance rankings or performance testing. This shopping reference does not replace the exact product label or qualified individual advice. Current received labels, exact chemical/model authorization and independent chemical/equipment/content/commerce review remain pending.
Urnex US: Cafiza E31 12-E31-UX100 ↗
Keep reading
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How do 100 tablets and 12 jars change a Cafiza order? ↗
How should a cleaner budget handle exact cents and full discounts? ↗