PIPA RELX Car Seat Base | live price, prepared checkout
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Sold and shipped by modernnursery.com, modernnursery.com; payment happens on the store's own checkout.
Brand: Nuna
- Default Title: USD 250.00; in stock. Variant id
gid://shopify/ProductVariant/32514217443428- Seller: modernnursery.com. Price: USD 250.00. Stock: in stock. Variant: Default Title, variant id
gid://shopify/ProductVariant/32514217443428. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. Public evidence. Comparison page. Get ready to buy from modernnursery.com: prepare checkout.
- Seller: modernnursery.com. Price: USD 250.00. Stock: in stock. Variant: Default Title, variant id
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. 54 checked facts, checked 2026-10-22T08:39:54.604Z. Research depth: trimmed read. Deep read: the store's own data and 11 outside pages (the store's own product page; maker page; manual; review; blog; regulator recall search (CPSC (United States)); regulator recall search (Health Canada); video review (derived summary of its captions)), 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: CPSC recall search returned no records for Nuna/PIPA RELX. Health Canada records mentioning Nuna were an archived Nuna high-chair recall and an unrelated cannabis notice, not this base.
- product title: The store lists the product title as PIPA RELX Car Seat Base.. Source: https://modern-nursery-test-store.myshopify.com/products.json (listing), read 2026-10-21T19:31:31.510Z.
- installation: The installer found installation in a Honda CR-V straightforward: unlock and extend the load leg, click the latches, and confirm the indicators turn green.. Source: https://www.youtube.com/watch?v=KaKETntTdrE (review), read 2026-10-22T08:21:05.344Z.
- compatibility: The store says it is compatible with PIPA aire, PIPA rx and PIPA aire rx, and not compatible with PIPA urbn.. Source: https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base (guide), read 2026-10-22T08:19:18.398Z.
- what it is: The PIPA RELX is an infant car seat base for Nuna PIPA series seats, with bubble-free installation.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- recline limits: Nuna's manual IM-001753A puts recline positions 1 and 2 at 4–21 lb and 16–26 inches; another Nuna manual in this pack puts positions 1 and 2 at 4–20 lb and up to 32 inches, so the sources disagree.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- lockoff: The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- installation error: A common mistake is extending the load leg too far so it lifts the base off the vehicle seat; it should be extended only until contact is made and the indicator turns green.. Source: https://www.thecarmom.com/articles/nuna-pipa-rx-review (blog, thecarmom.com), read 2026-10-22T08:19:25.617Z.
- vehicle fit: Rigid LATCH bases do not fit every vehicle anchor layout, so the buyer should check their vehicle before assuming the base will install.. Source: https://buckleandbuggy.com/reviews/nuna-pipa-rx (review), read 2026-10-22T08:19:38.628Z.
- stability leg: The RELX load leg has three sections and more adjustment positions than the original base, with side-mounted red-to-green indicators that are easier to see.. Source: https://strolleria.com/blogs/news/nuna-pipa-base-vs-relx-base (blog, Strolleria, published 2020-04-07), read 2026-10-22T08:19:41.195Z.
- lower anchor guides: The box included fabric lower-anchor covers; moving or removing them lets the load leg sit on the vehicle floor rather than on the covers.. Source: https://www.youtube.com/watch?v=KaKETntTdrE (review), read 2026-10-22T08:21:05.344Z.
- dimensions: The base measures 23.75 inches long, 13 inches wide and 12 inches high.. Source: https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base (guide), read 2026-10-22T08:19:18.398Z.
- compatibility: Nuna's FAQ says all PIPA series infant car seats fit except the PIPA urbn.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- recline limits: Nuna's manual IM-001753A puts recline positions 3 and 4 at 21–30 lb and 26–30 inches; another Nuna manual in this pack puts positions 3 and 4 at 21–32 lb and up to 32 inches, so the sources disagree.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- stability leg: The shorter stability-leg positions make the base more usable in center seating positions where the original base's load leg was often too long.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- installation: The five-second install is reported to be genuinely quick, with rigid anchors clicking easily and the load leg plus anti-rebound panel producing a snug fit.. Source: https://www.thecarmom.com/articles/nuna-pipa-rx-review (blog, thecarmom.com), read 2026-10-22T08:19:25.617Z.
- center seat: A load leg can be blocked by a large transmission tunnel in the center seating position, so floor geometry should be checked before relying on that feature there.. Source: https://buckleandbuggy.com/reviews/nuna-pipa-rx (review), read 2026-10-22T08:19:38.628Z.
- rigid latch: The four-position LATCH connectors ratchet tighter as the base is pushed back, helping reduce movement and close the gap to the vehicle seatback.. Source: https://strolleria.com/blogs/news/nuna-pipa-base-vs-relx-base (blog, Strolleria, published 2020-04-07), read 2026-10-22T08:19:41.195Z.
- recline: The video notes recline positions 1 and 2 for lower-weight babies and positions 3 and 4 for heavier babies, so the base can be adjusted as the child grows.. Source: https://www.youtube.com/watch?v=KaKETntTdrE (review), read 2026-10-22T08:21:05.344Z.
- child limits: The store's listing gives the recommended use as 4 to 30 pounds and 16 to 30 inches; a Nuna PIPA RELX base manual in this pack (IM-000030E) gives 4 to 32 pounds and under 32 inches, so the sources disagree.. Source: https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base (guide), read 2026-10-22T08:19:18.398Z.
- weight: Nuna lists the base weight as 16.8 pounds.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- cleaning: Clean the base only with mild detergent, water and a soft cloth, then air dry.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- recline adjustment: The recline button takes some force to press, but once engaged the top of the base slides to change angle, and the adjustment locks when the carrier is attached.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- base choice: The RELX base is preferred over the original PIPA base for easier use and on-the-go recline; a second RELX base is suggested for a second vehicle.. Source: https://www.thecarmom.com/articles/nuna-pipa-rx-review (blog, thecarmom.com), read 2026-10-22T08:19:25.617Z.
- value: Most of the premium is in the base hardware: the load leg, self-tensioning install and recline adjustment make a correct install easier, though this is not a verified safety rating advantage.. Source: https://buckleandbuggy.com/reviews/nuna-pipa-rx (review), read 2026-10-22T08:19:38.628Z.
- recline use: Recline can be adjusted after installation, even with the infant carrier attached, using side buttons and weight-based positions.. Source: https://strolleria.com/blogs/news/nuna-pipa-base-vs-relx-base (blog, Strolleria, published 2020-04-07), read 2026-10-22T08:19:41.195Z.
- installation: Nuna describes a 5 second install.. Source: https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base (guide), read 2026-10-22T08:19:18.398Z.
- installation: Nuna calls the True lock installation swift and safe.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- airbag warning: Do not install the rear-facing restraint in a seating position with an active frontal air bag.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- BMW fit: A manufacturer representative reportedly said the new base fits BMW 3 Series vehicles where the original was notorious for failing, but the reviewer had not independently confirmed it.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- floor mats: Nuna does not prohibit a floor mat under the load leg, as long as the load leg indicator shows green.. Source: https://www.thecarmom.com/articles/nuna-pipa-rx-review (blog, thecarmom.com), read 2026-10-22T08:19:25.617Z.
- ratings: The reviewer did not print a NHTSA or IIHS rating because it could not read the primary database, and it did not crash-test the product itself.. Source: https://buckleandbuggy.com/reviews/nuna-pipa-rx (review), read 2026-10-22T08:19:38.628Z.
- portability: The RELX base is larger and heavier than the original base, so someone who frequently carries or transfers the base may prefer the lighter original.. Source: https://strolleria.com/blogs/news/nuna-pipa-base-vs-relx-base (blog, Strolleria, published 2020-04-07), read 2026-10-22T08:19:41.195Z.
- certifications: The store lists the base as No PFAS.. Source: https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base (guide), read 2026-10-22T08:19:18.398Z.
- stability leg: The steel stability leg has a wide adjustment range and is intended to fit most vehicles, including middle seats.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- shopping cart warning: Do not use the carrier on a shopping cart.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- rigid latch: The redesigned lockoff moves the belt path into separate sections, making the rigid lower anchors less likely to interfere with the vehicle seat belt.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- compatibility: At the time of that comparison, the RELX base was said to work with all versions of the PIPA series, including PIPA, PIPA RX, PIPA Lite, PIPA Lite R and PIPA Lite LX.. Source: https://strolleria.com/blogs/news/nuna-pipa-base-vs-relx-base (blog, Strolleria, published 2020-04-07), read 2026-10-22T08:19:41.195Z.
- certifications: The store lists the base as fire retardant free.. Source: https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base (guide), read 2026-10-22T08:19:18.398Z.
- stability leg: The stability leg has a crumple zone intended to absorb impact and reduce force transferred to the baby.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- installation check: There should be no gap between the vehicle seat and the bottom of the base.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- anti-rebound panel: The base has an anti-rebound panel that is not discussed in the manual, apparently because it needs no extra adjustment.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- rigid latch: The rigid latch has four adjustable positions to reduce or remove the gap between the vehicle seat and base.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- installation check: When installed with the vehicle belt, the base should not move side to side more than 1 inch at the belt path.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- dimensions: The review lists the base as about 12 inches wide, 24 inches long and 16.5 pounds.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- installation indicators: The rigid latch indicators turn green when clicked to the vehicle anchor points.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- installation: Nuna permits installing with both the rigid lower anchors and the vehicle belt.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- vehicle belt fit: In a vehicle with awkward seat-belt geometry, vehicle-belt installation took more effort; the reviewer expected it to be easier in most other vehicles.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- recline: The base has four on-the-go recline positions.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- aircraft: Nuna does not recommend using the stability leg on an aircraft.. Source: https://dl.nunababy.eu/Instruction_Manual/US/PIPA-relx-base/Nuna_PIPArelxbase_UserManual_US.pdf (manual), read 2026-10-22T08:19:21.417Z.
- recline indicator: The new base's recline indicator is easier to read than the original base's bubble indicator, which many caregivers found confusing.. Source: https://csftl.org/nuna-pipa-rx-review/ (review), read 2026-10-22T08:19:24.730Z.
- anti-rebound: The base has an anti-rebound panel.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- vehicle seats: Nuna says the smooth platform protects vehicle seats and the low profile makes loading the infant seat easier.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- seat belt install: The lockoff has an easy-access belt path for installing with the vehicle belt.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
- seat belt install: The seat belt lockoff has separate lap and shoulder belt paths.. Source: https://nunababy.com/usa/pipa-relx-car-seat-base?color_ref=16405 (guide), read 2026-10-22T08:19:19.573Z.
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 maker's page, the manual, owner reviews, blogs, video reviews and the recall records of CPSC (United States) and Health Canada and searched for regulator recall notices and owner forums. 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 is the warranty period for the base?
- How many years does the base last before it expires?
- Does the base fit a BMW 3 Series?
- Which specific vehicle models and years is the base confirmed to fit?
- Will the rigid lower anchors fit every vehicle's anchor layout?
- Can the stability leg be used in the center seat when the floor has a large transmission tunnel?
- What does the base's surface feel like to the touch?
- Is the base's plastic shell thick or thin?
- Does the base's finish or coating rub off with use?
- What parts tend to break or wear out first?
- Which replacement parts can be ordered for the base?
- Does the base come with a travel bag?
- What exactly is included in the box besides the base?
- Is there a minimum age requirement for the child?
- Is the base Greenguard Gold certified?
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Product image of PIPA RELX Car Seat Base, supplied by modernnursery.com: https://cdn.shopify.com/s/files/1/0278/8291/3892/products/nuna-relx-base.jpg?v=1592899232
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Retrieved 2026-10-24T19:33:00.999Z from https://modern-nursery-test-store.myshopify.com/products.json
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