The 50166G and 50167G are the same new 56-ounce, ten-speed pitcher setup in white and black. The R50190 is a separate manufacturer-recertified offer with its own 90-day warranty. The 50192 is a smaller 48-ounce model whose linked booklet does not name that code. Picking by “10 speed” or a photograph alone misses the differences that matter most: capacity, condition, model-matched instructions and warranty.

Choose by vessel size, not by the family name

If you want one nominal 56-ounce jar, compare the new 50166G/50167G review with the recertified R50190 review. The first exact pages list a dishwasher-safe 56-ounce jar; the R50190 page specifically describes a 56-ounce BPA-free plastic jar. Neither nominal figure establishes a safe fill line for every recipe, and neither meets an essential 64-ounce single-vessel minimum.

The 50192 review covers the 48-ounce alternative. It may fit a medium pitcher routine without occupying the larger nominal volume, but a 48-ounce jar does not satisfy a 56-ounce minimum. Its exact product page calls the jar BPA-free and says the jar and lid are dishwasher-safe; it does not identify the jar as glass. A category-card facet labels the 50192 as 40-ounce glass, but the exact page instead lists 48 ounces and BPA-free wording. We use the exact product page for capacity and leave material unconfirmed rather than converting the image or conflicting facet into proof.

Condition and warranty change the answer

New white 50166G and black 50167G pages list three-year limited warranties. The recertified R50190 offer is not a new color: it says the blender was professionally recertified and gives a 90-day warranty. That shorter protection is a poor fit if a one-year minimum is essential. The manufacturer page for 50167G and the R50190 page both showed Out of Stock when checked on October 24, 2026; the 50166G page showed In Stock, while 50192 showed an order option. These are time-stamped manufacturer-page states, not guarantees of availability now or at a separate seller.

Do not transfer manual instructions between lookalike codes

The strongest exact instruction bridge is the new 50166G/50167G group: both pages directly link Use & Care guide 840267802, whose model table names 50166 and 50167 and allows letter suffixes. It describes the high/low and speed-button sequence, hold-to-run Pulse, a three-minute continuous-use limit, at least 8 ounces of liquid for best performance, and a maximum 24-ounce hot-liquid procedure with venting and a low-speed start. The guide also rules out dry coffee or grains and several other tasks. Treat 24 ounces as the manual’s hot-mixture limit—not as permission to fill the 56-ounce jar with hot soup.

The R50190 product page says manuals are included, and the archived 840267802 table does name base model 50190/type B94. But the recertified page does not identify which booklet or revision is in the box. If a safety-dependent hot-use or dry-ingredient rule is essential, check the included guide before relying on the base-model document. The 50192 page links 840267802 too, but that printed table omits 50192. Its hot-liquid limit, minimum-liquid amount and other model-specific instructions stay unknown; the 50166 procedure is not borrowed just because both pages say ten speeds.

Match the package to the real routine

For a new 56-ounce jar plus an exact, linked operating guide, the 50166G/50167G group is the clearest fit; choose the finish code you can actually buy. For a recertified offer, R50190 may suit someone who accepts a plastic jar, its 90-day term, current stock uncertainty and an unspecified manual revision. For a new 48-ounce jar, 50192 supplies an exact-page dishwasher-safe jar/lid claim and ten-speed description, but not an exact-model guide match. If glass, an exact hot-liquid procedure or a larger 64-ounce jar is essential, none of these three options is confirmed to meet that need. The maker’s peak-watt numbers are specifications, not independent evidence of smoother results or longer service life.