DIONO Sit Rite Seat Leveler | live price, prepared checkout

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We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built.

RoboTrunk is working through its catalogue, so a step may not be done for this one yet. Where a step is done per product, the line ends with what is done for this product.

• Deep research: We read the maker's manual, independent reviews, video review transcripts and the store's own page, and publish each finding with its source and the date read. check_product returns them with a source for each. This product: 14 checked facts, research depth trimmed read, checked 2026-09-25T04:53:09.734Z, in the evidence pack.
• Receipts: Every published fact has a receipt showing its source quote. check_product and get_product return the checked facts that have one. This product: each checked fact listed below has one; the source quotes are in the evidence pack.
• Safety: check_product asks the product-safety regulators live (US CPSC, NHTSA and FDA, Health Canada, the UK's OPSS, Australia's ACCC) whether a recall names a product, listed here or not, and flags a match with its notice; a recall never blocks the buyer. This product: this page holds no recall result for it yet; check_product asks the regulators now.
• Recall watch: watch_recalls tells the buyer if a product bought here is recalled later.
• Second-hand listings: check_listing runs the same recall check on a second-hand listing someone found, and adds what the listing leaves out and the price new.
• The real price: The full price to the buyer's country, with shipping and tax, each part quoted from the store's policy or, where a part is not settled, what the total depends on: check_product and search_catalog take the buyer's country and postcode. This product: this store's price was read from its catalogue at 2026-10-18T19:50:07.465Z.
• A checkout that finishes: RoboTrunk lists only stores whose agent checkout it has verified. create_checkout prepares the order at the store; complete_checkout returns a link to the store's own checkout. The checkout can be finished in either of two ways: the person taps the link in their own browser, or their agent opens it and completes the checkout. RoboTrunk checks the store's total against a budget ceiling before it issues the link. Payment always happens on the store's own page, and RoboTrunk never holds the money. No store pays for placement; RoboTrunk may earn a commission from some stores via their affiliate programs.
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• Fit answers: check_fit answers whether a listing fits a car, pram or bottle, with the exact quote from the store's page, or says it is not known.
• Back-in-stock watches: watch_back_in_stock starts a watch on a listing the store shows as sold out; get_back_in_stock_watch shows when it is back in stock.
• Maker's manual: ask_product_manual answers from the maker's manual with the exact passage and page, or says the manual does not cover it.
• Tools and guide: Every tool and its description is at https://robotrunk.com/mcp; the guide is at /agents.md.
• Research from other stores: Coming soon: reading other stores' listings of the same product as research sources.

Checked facts

Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 14 checked facts, checked 2026-09-25T04:53:09.734Z. Research depth: trimmed read. Deep read: the store's own data and 5 outside pages (the store's own product page; manual; regulator recall search (CPSC (United States)); regulator recall search (Health Canada); regulator recall search (ACCC Product Safety Australia)), each read in full by RoboTrunk and trimmed to its main content, then written up and checked. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read. Recall status was checked directly with CPSC (United States), Health Canada, ACCC Product Safety Australia: The supplied CPSC search returned no records for Diono Sit Rite SKU 40140-NA-02. The supplied Health Canada results list other Diono child seats, booster seats and a bassinet, not this leveler. The ACCC feed covered only the 100 most recent recalls through 25 September 2026 and contained no Diono or Sit Rite entry, so it cannot exclude older Australian recalls.

• Colour: The merged store data identifies the product as grey.. Source: https://anb-baby.myshopify.com/products.json (listing), read 2026-09-24T19:02:00.790Z.
• Purpose: It levels a rear-facing child safety seat and helps position an infant at the proper angle.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Material: It is made from high-density polyethylene foam.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Firmness: The dense foam is intended to provide firm lateral support and resist flattening while the car seat is tightened and installed.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Fit adjustment: It may be cut to the length required for the vehicle-seat width.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Compatibility: It works with most rear-facing child safety seats and infant-carrier bases and is compatible with LATCH/UAS installations.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Radian exclusion: It must not be used with Radian car seats.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Diono convertible seats: It must not be used with Diono convertible car seats; those seats require their included detachable base.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Other brands: The store says it is suitable with another brand only when that brand instructs users to install with a rolled towel or pool noodle.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Rear-facing only: It is not for a forward-facing car seat.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Installation angle: Installation should produce the recline position required by the child-seat manual or its angle indicator.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Crash testing: The listing states that the leveler has been crash tested, but names no test method, standard or certification.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Warranty: The retailer advertises a full manufacturer warranty, but gives no duration or terms in the supplied page text.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.
• Identifiers: The manufacturer SKU is 40140-NA-02 and the UPC is 677726401406.. Source: https://anb-baby.myshopify.com/products/diono-sit-rite-seat-leveler (guide), read 2026-09-25T04:35:17.254Z.

The full evidence pack, with every citation, source and gap.

Questions we researched but could not confirm

Every fact above is cited. To find them we read the store listing, the manual and the recall records of CPSC (United States), Health Canada and ACCC Product Safety Australia. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess.

• What are its uncut dimensions and thickness?
• How much does it weigh?
• How does the foam feel to the touch?
• Is the foam coated or painted, and can its finish rub off?
• Which exact non-Diono car-seat models approve its use?
• Which vehicle seats does it fit without protruding or rubbing?
• Exactly where and in which orientation should it be installed?
• What tool should be used to cut it safely?
• Can it be reused after being cut?
• How durable is it under prolonged compression and heat?
• What parts, if any, tend to split, crumble or deform?
• What care and cleaning method does Diono specify?
• What exactly is included in the package?
• What are the manufacturer-warranty duration and terms?
• Which safety standards or certifications does it meet?

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store's own checkout page. RoboTrunk never takes the payment or sees a card.

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